CN107680430A - A kind of auxiliary student does the English study device inscribed - Google Patents
A kind of auxiliary student does the English study device inscribed Download PDFInfo
- Publication number
- CN107680430A CN107680430A CN201710971823.2A CN201710971823A CN107680430A CN 107680430 A CN107680430 A CN 107680430A CN 201710971823 A CN201710971823 A CN 201710971823A CN 107680430 A CN107680430 A CN 107680430A
- Authority
- CN
- China
- Prior art keywords
- english
- square tube
- card
- rotating disk
- exercises
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B7/00—Electrically-operated teaching apparatus or devices working with questions and answers
- G09B7/06—Electrically-operated teaching apparatus or devices working with questions and answers of the multiple-choice answer-type, i.e. where a given question is provided with a series of answers and a choice has to be made from the answers
Abstract
A kind of auxiliary student does the English study device inscribed, and is related to a kind of English study device.Shell includes multiple square tubes and multiple arcs side plate, multiple English Exercises cards are stacked with each square tube, each square tube is provided with a gap, bottom plate matching is fastened on shell bottom, bottom plate inner surface is fixed with more stage clips one, the every apical support of stage clip one is in multiple corresponding English Exercises card lower ends, bottom plate inner surface center is fixed with pipe, upper end in drive rod lower end insertion pipe, drive rod lower end is supported by stage clip two, center of turntable is provided with the through hole being engaged with drive rod, rotating disk, which rotates coaxially, is arranged on pipe upper end, rotating disk is provided with display port and answer selection device with one of square tube upper end correspondence position.Can answer selected by automatic decision it is whether correct, increase Students ' Learning English interest, to the English Exercises card to do wrong carry out arrange be easy to search the deficiency of oneself.
Description
Technical field
The present invention relates to a kind of English study device, especially a kind of auxiliary student does the English study device inscribed.
Background technology
English is the international official language specified, and widest first language in the world, possesses third place in the world
Mother tongue user's number, increasingly rapid with international development, people either learn or lived, and contact the place of English
It is all more and more, learn the required course that English has become contemporary people well.
English is as a class of languages subject, and very dry as dust in study, especially when doing English Exercises, student is also
The topic oneself to do wrong found out one by one with reference to answer, extremely influence learning efficiency, dull inscribing is difficult to improve to English
Interest is practised, is also not easy to arrange the topic to do wrong, so as to search the deficiency of oneself.Therefore, one kind can aid in student to exist
Automatic decision is to mistake when inscribing, and the English study device for helping to increase students ' interest of study is very necessary.
The content of the invention
Student is aided in do the English study device inscribed it is an object of the invention to provide a kind of, it, which is particularly suitable for use in, does English
Multiple-choice question, can answer selected by automatic decision it is whether correct, increase Students ' Learning English interest, to the English Exercises card to do wrong
Arrange and be easy to search the deficiency of oneself.
Above-mentioned purpose is realized, the present invention takes following technical proposals：A kind of auxiliary student does the English study device inscribed, and wraps
Include shell, bottom plate, pipe, stage clip two, drive rod, rotating disk, answer selection device, more stage clips one and multiple English Exercises
Card, described shell include multiple square tubes and multiple arcs side plate, and described multiple square tubes are vertically arranged, per two neighboring side
Cylinder is affixed by the arc side plate described in one, and multiple square tubes are arranged in regular polygon, and each side tube-wall of square tube one is described in
Regular polygon it is centrally disposed, the English Exercises card described in multiple, relatively another side neck of each square tube are stacked with each square tube
Wall upper end level is provided with a gap, and the matching of described bottom plate is fastened on shell bottom, and bottom plate inner surface is vertically fixed with
More stage clips one, more described stage clips one are corresponded with multiple square tubes and set, and the every apical support of stage clip one is corresponding
Multiple English Exercises card lower ends, bottom plate inner surface center are vertically fixed with pipe, and described drive rod lower end is inserted in pipe
Upper end, drive rod lower end is supported by stage clip two in described pipe, described center of turntable be provided be engaged with drive rod it is logical
Hole, rotating disk are rotatably arranged on pipe upper end by coaxial bearing, and rotating disk is provided with displaying with one of square tube upper end correspondence position
Mouth and answer selection device, described answer selection device sentence topic button including multiple, and each described topic button of sentencing is equipped
One correct display lamp and a wrong display lamp.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention is not only suitable for one and inscribed, and is also applied for more people
Match is inscribed, and can be rotated rotating disk by pressing drive rod and be randomly choosed one group of topic, choose answer and sentence corresponding to pressing topic by
After button, can answer selected by automatic decision it is whether correct, extract out English Exercises card after can do next English Exercises card, structure
Simply, it is easy to operate, the interest of Students ' Learning English can not only be increased, student arranges to the English Exercises card to do wrong,
It is also convenient for searching the deficiency of oneself.
Brief description of the drawings
Fig. 1 is that the auxiliary student of the present invention does the overall structure axonometric drawing for the English study device inscribed；
Fig. 2 is the axonometric drawing of the shell of the present invention；
Fig. 3 is Fig. 2 A portions enlarged drawing；
Fig. 4 is the bottom plate of the present invention and the fractionation structure axonometric drawing of rotating disk；
Fig. 5 is the axonometric drawing of the English Exercises card of the present invention；
Fig. 6 is the axonometric drawing of the answer selection device of the present invention；
Fig. 7 is the principle schematic for sentencing topic button of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the present invention is clearly and completely retouched
State, it is clear that described embodiment is only the part of the embodiment of invention, rather than whole embodiments, based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made,
Belong to the scope of protection of the invention.
Embodiment one：As shown in Fig. 1 ~ Fig. 7, student is aided in make the English study dress inscribed the invention discloses a kind of
Put, including shell, bottom plate 3, pipe 5, stage clip 26, drive rod 7, rotating disk 9, answer selection device, more stage clips 1 and
Multiple English Exercises cards 11, described shell include multiple square tubes 1 and multiple arcs side plate 2, and described multiple square tubes 1 are vertical
Set, affixed by the arc side plate 2 described in one per two neighboring square tube 1, multiple square tubes 1 are arranged in regular polygon, each
The side tube-wall of square tube 1 one is centrally disposed towards described regular polygon, and the English Exercises card described in multiple is stacked with each square tube 1
11, relatively another side tube-wall upper end of each square tube 1 is horizontal to be provided with a gap 1-3, and the matching of described bottom plate 3 is fastened on shell
Bottom, the inner surface of bottom plate 3 are vertically fixed with more stage clips 1, and more described stage clips 1 correspond with multiple square tubes 1
Set, the every apical support of stage clip 1 is vertically solid at multiple corresponding lower ends of English Exercises card 11, the inner surface center of bottom plate 3
Surely there is pipe 5, upper end in pipe 5 is inserted in the described lower end of drive rod 7, and the lower end of drive rod 7 is supported by stage clip in described pipe 5
26, the described center of rotating disk 9 is provided with the through hole 9-1 being engaged with drive rod 7, and rotating disk 9 is rotated coaxially by bearing 8 and is arranged on
The upper end of pipe 5, rotating disk 9 is provided with display port 9-2 and answer selection device with one of upper end correspondence position of square tube 1, described
Answer selection device include it is multiple sentence topic button 10, it is each described sentence topic button 10 be equipped with a correct display lamp 10-3 and
One wrong display lamp 10-4.
Embodiment two：As shown in Figure 2,3, present embodiment is that embodiment one is made furtherly
Bright, the side tube-wall described in each described square tube 1 is vertically provided with a plurality of 1-1 of groove one, relatively another described in each square tube 1
Side tube-wall be vertically provided with groove two 1-2, the described 1-2 of groove two and the 1-1 lower ends of a plurality of groove one with the corresponding bottom of square tube 1
Face insertion is set, and the 1-2 upper ends of groove two penetrate with corresponding gap 1-3 and set.
Embodiment three：As shown in Figure 2,3, present embodiment is to embodiment one or embodiment
Two further explanations made, each described gap 1-3 are at least available for an English Exercises card 11 to extract out.
Embodiment four：As shown in Fig. 1,2,5, present embodiment be embodiment two is made it is further
Illustrate, one end of English Exercises card 11 described in every is provided with multiple bar shaped extension 11-1, described multiple bar shaped extension 11-
1 corresponds setting with the 1-1 of a plurality of groove one of corresponding square tube 1, and the 1-1 of groove one corresponding to warp is stretched out outside square tube 1 respectively
Side, every opposite other end of English Exercises card 11 are provided with Handheld Division 11-2, and the 1-2 stretching sides of groove two of square tube 1 corresponding to warp
The outside of cylinder 1.
Embodiment five：As shown in Fig. 1,4,5,6,7, present embodiment is entered to what embodiment four was made
One step illustrates, it is described it is multiple sentence topic button 10 with described in the English Exercises card 11 of the top in described one of square tube 1
Multiple bar shaped extension 11-1 correspond set, described rotating disk 9 be provided with it is multiple be used for install sentence topic button 10 installations
Hole, one of bar shaped extension 11-1 upper surfaces of the English Exercises card 11 described in every are fixed with a conductive contact one
12, remaining bar shaped extension 11-1 upper surfaces of every English Exercises card 11 are respectively fixed with a conductive contact 2 13, same
Described conductive contact 1 shifts to install with multiple described conductive contacts 2 13 on English Exercises card 11, each sentences topic button
10 are provided with a power supply 14, each sentence the correct display lamp 10-3 described in topic button 10 and pass through wire 1 and described power supply 14
Series connection, each sentence the wrong display lamp 10-4 described in topic button 10 and connected by wire 2 16 with power supply 14, and described in every
Wire 1 and wire 2 16 sentence the lower surface for inscribing button 10, each wire 1 and corresponding described conduction corresponding to passing through
The correspondence position of contact 1 is provided with a 15-1 of fracture one, each wire 2 16 and corresponding described 2 13 corresponding position of conductive contact
A 16-1 of fracture two is installed.English Exercises card 11 can write English multiple-choice question, multiple to sentence topic button 10 and represents difference respectively
Option, conductive contact 1 are fixed on corresponding to correct option on bar shaped extension 11-1, and conductive contact 2 13 is fixed on mistake
Corresponding to answer on bar shaped extension 11-1, such as press and correctly sentence topic button 10, this sentences the fracture one of topic button 10 lower surface
15-1 is contacted with conductive contact 1, and correct display lamp 10-3 is turned on and opened with power supply 14, and mistake display lamp 10-4 is due to disconnected
Can not be conductive at mouthful two 16-1 and be closed all the time, conversely, such as press remaining it is any it is wrong sentence topic button 10, this is sentenced
The 16-1 of fracture two of topic button 10 lower surface is contacted with conductive contact 2 13, and mistake display lamp 10-4 is turned on and opened with power supply 14
Open, correct display lamp 10-3 due to can not be conductive at the 15-1 of fracture one and be closed all the time.
Embodiment six：As shown in fig. 6, present embodiment is that embodiment five is made furtherly
It is bright, it is each described sentence topic button 10 and slide up and down be arranged in the corresponding described mounting hole of rotating disk 9, each sentence on topic button 10
Lower both ends are fixed with a spacing ring 10-1 respectively, each sentence topic button 10 and are equipped with a pair of elastic reset sheet metal 10-2,
Elastic reset sheet metal 10-2 lower ends described in each pair are affixed with the correspondence position of rotating disk 9 respectively, each pair elastic reset sheet metal 10-
2 upper ends are respectively supported at the corresponding spacing ring 10-1 lower surfaces positioned at described in upper end, each sentence topic button 10 and are additionally provided with one
For installing the installation cavity of power supply 14, each described power supply 14 is button cell.Spacing ring 10-1 avoids sentencing topic button 10
Deviate from from the mounting hole of rotating disk 9, elastic reset sheet metal 10-2 can reset upwards to sentencing topic button 10.
Embodiment seven：As shown in Figure 1,2,3, 4, present embodiment is to enter one to what embodiment one was made
Step explanation, each described barrel lower end of square tube 1 are provided with two neck 1-4, and described bottom plate 3 is fixed with multiple and described
The one-to-one dop 3-1 of neck 1-4, bottom plate 3 are fastened on shell bottom by multiple described dop 3-1.
Embodiment eight：As shown in Fig. 1,4, present embodiment is that embodiment one is made furtherly
Bright, the described side wall lower ends of drive rod 7 are formed with external screw thread, and the through hole 9-1 of described rotating disk 9 is to be engaged screw thread with drive rod 7
Through hole.When pressing drive rod 7, drive rod 7 can be rotated by external screw thread driving rotating disk 9.
Embodiment nine：As shown in Figure 1, 2, 3, present embodiment be embodiment one is made it is further
Illustrate, each described upper surface of square tube 1 and the lower surface correspondence position of rotating disk 9 are respectively fixed with a magnet 1-5.Magnet 1-5
After rotating disk 9 can be made to stop operating, display port 9-2 and answer selection device are corresponding with a random square tube 1.
The present invention can be made to English Exercises card 11 in advance, and English multiple-choice question and more is write on English Exercises card 11
Individual option（Such as A, B, C, D）, sentence topic button 10 to multiple and write and numbered correspondingly with multiple options（Such as A, B, C, D）, and
In correct option（Such as A）Conductive contact 1 is fixed on corresponding bar shaped extension 11-1, in wrong answer（Such as B, C, D）It is right
Conductive contact 2 13 is fixed on the bar shaped extension 11-1 answered, afterwards loads English Exercises card 11 in corresponding square tube 1, is blocked
Good bottom plate 3, when using of the invention, first press drive rod 7 and randomly choose one group of topic, 9 turns of 7 driving rotating disk of drive rod
It is dynamic, drive rod 7 is unclamped after rotating disk 9 stops operating, rotating disk 9 is under magnet 1-5 effects, display port 9-2 and answer selection device
It is corresponding with a random square tube 1（Due to magnet 1-5 suction-operated, rotating disk 9 is motionless, unclamps drive rod 7 after drive rod 7
Rotated upwards under the effect of stage clip 26, do not interfere with rotating disk 9）, pass through English Exercises card corresponding to display port 9-2 readings afterwards
11, choose answer and topic button 10 is sentenced corresponding to pressing, such as select correct（A）, this sentences bar shaped extension corresponding to topic button 10
Conductive contact 1 is fixed with 11-1, the accessible 15-1 of fracture one opens correct display lamp 10-3, such as selects mistake（B、C
Or D）, this is sentenced is fixed with conductive contact 2 13 corresponding to topic button 10 on bar shaped extension 11-1, and the accessible 16-1 of fracture two makes
Mistake display lamp 10-4 is opened, and holds Handheld Division 11-2 afterwards and extract the English Exercises card 11 from gap 1-3 out, you can do next
English Exercises card 11, the English Exercises card 11 to do wrong, which can arrange, to be easy to review, can also more people carry out doing topic match, improve
Learning interest.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in the form of others dress bodies.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the condition of equivalent of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (9)
1. a kind of auxiliary student does the English study device inscribed, it is characterised in that：Including shell, bottom plate（3）, pipe（5）, pressure
Spring two（6）, drive rod（7）, rotating disk（9）, answer selection device, more stage clips one（4）And multiple English Exercises cards（11）, institute
The shell stated includes multiple square tubes（1）And multiple arcs side plate（2）, described multiple square tubes（1）It is vertically arranged, per adjacent two
Individual square tube（1）Pass through the arc side plate described in one（2）It is affixed, multiple square tubes（1）Arranged in regular polygon, each square tube（1）
One side tube-wall is centrally disposed towards described regular polygon, each square tube（1）Inside it is stacked with the English Exercises card described in multiple
（11）, each square tube（1）Relatively another side tube-wall upper end is horizontal to be provided with a gap（1-3）, described bottom plate（3）Matching card
It is located at shell bottom, bottom plate（3）Inner surface is vertically fixed with more stage clips one（4）, described more stage clips one（4）With it is multiple
Square tube（1）Correspond and set, every stage clip one（4）Apical support is in multiple corresponding English Exercises cards（11）Lower end, bottom
Plate（3）Inner surface center is vertically fixed with pipe（5）, described drive rod（7）Pipe is inserted in lower end（5）Interior upper end, it is described
Pipe（5）Interior drive rod（7）Lower end is supported by stage clip two（6）, described rotating disk（9）Center is provided with and drive rod（7）It is engaged
Through hole（9-1）, rotating disk（9）Pass through bearing（8）Rotate coaxially and be arranged on pipe（5）Upper end, rotating disk（9）With one of square tube
（1）Upper end correspondence position is provided with display port（9-2）And answer selection device, described answer selection device include it is multiple sentence topic by
Button（10）, each described sentences topic button（10）It is equipped with a correct display lamp（10-3）An and wrong display lamp（10-
4）.
2. a kind of auxiliary student according to claim 1 does the English study device inscribed, it is characterised in that：Described in each
Square tube（1）A described side tube-wall is vertically provided with a plurality of groove one（1-1）, each square tube（1）Described relatively another side tube-wall
Vertically it is provided with groove two（1-2）, described groove two（1-2）And a plurality of groove one（1-1）Lower end with corresponding square tube（1）Bottom
End face insertion is set, groove two（1-2）Upper end with corresponding gap（1-3）Insertion is set.
3. a kind of auxiliary student according to claim 1 or 2 does the English study device inscribed, it is characterised in that：Each institute
The gap stated（1-3）At least it is available for an English Exercises card（11）Extract out.
4. a kind of auxiliary student according to claim 2 does the English study device inscribed, it is characterised in that：Described in every
English Exercises card（11）One end is provided with multiple bar shaped extensions（11-1）, described multiple bar shaped extensions（11-1）With it is corresponding
Square tube（1）A plurality of groove one（1-1）Correspond and set, and respectively through corresponding groove one（1-1）Stretch out square tube（1）Outside
Side, every English Exercises card（11）Opposite other end is provided with Handheld Division（11-2）, and square tube corresponding to warp（1）Groove two（1-
2）Stretch out square tube（1）Outside.
5. a kind of auxiliary student according to claim 4 does the English study device inscribed, it is characterised in that：Described is multiple
Sentence topic button（10）With described one of square tube（1）The English Exercises card of interior the top（11）Described multiple bar shapeds are stretched out
Portion（11-1）Correspond and set, described rotating disk（9）Sentence topic button for installation provided with multiple（10）Mounting hole, every institute
The English Exercises card stated（11）One of bar shaped extension（11-1）Upper surface is fixed with a conductive contact one（12）, often
Open English Exercises card（11）Remaining bar shaped extension（11-1）Upper surface is respectively fixed with a conductive contact two（13）, it is same
English Exercises card（11）Upper described conductive contact one（12）With multiple described conductive contacts two（13）Shift to install, each sentence
Inscribe button（10）Provided with a power supply（14）, each sentence topic button（10）Described correct display lamp（10-3）Pass through wire one
（15）With described power supply（14）Series connection, each sentences topic button（10）Described wrong display lamp（10-4）Pass through wire two（16）
With power supply（14）Series connection, and the wire one described in every（15）And wire two（16）Sentence topic button corresponding to passing through（10）Under
End face, each wire one（15）With corresponding described conductive contact one（12）Correspondence position is provided with a fracture one（15-1）, often
Root wire two（16）With corresponding described conductive contact two（13）Correspondence position is provided with a fracture two（16-1）.
6. a kind of auxiliary student according to claim 5 does the English study device inscribed, it is characterised in that：Described in each
Sentence topic button（10）Slide up and down and be arranged on rotating disk（9）In corresponding described mounting hole, topic button is each sentenced（10）Upper and lower ends
A spacing ring is fixed with respectively（10-1）, each sentence topic button（10）It is equipped with a pair of elastic reset sheet metals（10-2）,
Elastic reset sheet metal described in each pair（10-2）Lower end respectively with rotating disk（9）Correspondence position is affixed, each pair elastic reset metal
Piece（10-2）Upper end is respectively supported at the corresponding spacing ring positioned at described in upper end（10-1）Lower surface, each sentence topic button（10）
One is additionally provided with to be used to power supply be installed（14）Installation cavity, each described power supply（14）It is button cell.
7. a kind of auxiliary student according to claim 1 does the English study device inscribed, it is characterised in that：Described in each
Square tube（1）Barrel lower end is provided with two necks（1-4）, described bottom plate（3）It is fixed with multiple and described neck（1-4）One
Dop corresponding to one（3-1）, bottom plate（3）Pass through multiple described dops（3-1）It is fastened on shell bottom.
8. a kind of auxiliary student according to claim 1 does the English study device inscribed, it is characterised in that：Described driving
Bar（7）Side wall lower ends are formed with external screw thread, described rotating disk（9）Through hole（9-1）For with drive rod（7）It is engaged tapped through hole.
9. a kind of auxiliary student according to claim 1 does the English study device inscribed, it is characterised in that：Described in each
Square tube（1）Upper surface and rotating disk（9）Lower surface correspondence position is respectively fixed with a magnet（1-5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710971823.2A CN107680430B (en) | 2017-10-18 | 2017-10-18 | A kind of auxiliary student does the English study device inscribed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710971823.2A CN107680430B (en) | 2017-10-18 | 2017-10-18 | A kind of auxiliary student does the English study device inscribed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107680430A true CN107680430A (en) | 2018-02-09 |
| CN107680430B CN107680430B (en) | 2018-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710971823.2A Active CN107680430B (en) | 2017-10-18 | 2017-10-18 | A kind of auxiliary student does the English study device inscribed |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109102728A (en) * | 2018-08-31 | 2018-12-28 | 李伟 | A kind of biochemical Balance of reaction equation exercise device of junior-senior high school |
| CN114005311A (en) * | 2021-11-09 | 2022-02-01 | 海南诚明文化有限公司 | Interactive answering machine |
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| CN206210181U (en) * | 2016-09-30 | 2017-05-31 | 刘佼 | Thought politics theory contest titles selector |
| CN206271259U (en) * | 2016-11-22 | 2017-06-20 | 陕西学前师范学院 | The convenient teaching English study device of one kind |
| CN206293034U (en) * | 2016-11-14 | 2017-06-30 | 长春师范大学 | A kind of tourism English teaching servicing unit |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2442339Y (en) * | 2000-08-09 | 2001-08-08 | 王寰 | Rotary disc type learning and game machine |
| CN205943155U (en) * | 2016-06-12 | 2017-02-08 | 陕西理工学院 | Quick test system of english listening comprehension |
| CN206210181U (en) * | 2016-09-30 | 2017-05-31 | 刘佼 | Thought politics theory contest titles selector |
| CN206293034U (en) * | 2016-11-14 | 2017-06-30 | 长春师范大学 | A kind of tourism English teaching servicing unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109102728A (en) * | 2018-08-31 | 2018-12-28 | 李伟 | A kind of biochemical Balance of reaction equation exercise device of junior-senior high school |
| CN114005311A (en) * | 2021-11-09 | 2022-02-01 | 海南诚明文化有限公司 | Interactive answering machine |
| CN114005311B (en) * | 2021-11-09 | 2024-01-26 | 海南诚明文化科技有限公司 | Interactive answering machine |
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| Publication number | Publication date |
|---|---|
| CN107680430B (en) | 2018-08-17 |
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