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【简答题】
传感器技术在日常生活中的应用非常广泛,其中超市收款台采用条形码扫描的方法来得到各种商品的信息,实现快速收费的目的。条形码扫描的方法涉及到光电传感器,试分析条形码扫描笔的工作原理。
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参考答案：
举一反三
【单选题】Then there are the broken relationships, divorces and family alienation. Question: What does the author mean by saying "family alienation"?
A.
Family members are less close.
B.
Family members are less lucky.
C.
Family members are less upset.
D.
Families are less rich.
查看完整题目与答案
【单选题】Section A Vocabulary. Directions: There are 20 incomplete sentences in this part. For each sentence there are four choices marked A), B), C) and D). Choose the ONE answer that best completes the sente...
A.
separate
B.
compare
C.
choose
D.
distinguish
查看完整题目与答案
【单选题】— If there are ____ trees, the air will be cleaner. — I agree. Then there will be less pollution.
A.
much
B.
less
C.
fewer
D.
more
查看完整题目与答案
【判断题】.为了分析ECU是否有故障,应将故障车上的ECU换到同类型非故障车来做对比判别。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】How students ultimately handle stress may depend on their personal test-taking abilities. There are people who always wait until the last minute, and make it much harder than it needs to be. And then ...
A.
Students who put off their work until the last moment often find the exams more difficult than they actually are.
B.
Most professors agree whether to give an in-class or a take-home exam depends on type of course being taught.
C.
The author dropped out of college some forty years ago.
D.
Some students think take-home exams will eat up their free time.
E.
Elderly students find it hard to keep up with the rapid changes in education.
F.
Some believe take-home exams may affect students' performance in other courses.
G.
Certain professors believe in-class exams are ultimately more helpful to students.
查看完整题目与答案
【多选题】Part II Cultures and Intercultural communication (2'×10=20’)Directions: There are 10 incomplete sentences in this section. For each blank there are four choices marked A, B, C and D. Choose the ones t...
A.
anxiety
B.
assuming similarity instead of differences
C.
uncertainty
D.
fear
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【多选题】下述论述中不正确的有 。
A.
无论气温高低,只要零件的实际尺寸都介于最大、最小极限尺寸之间,就能判断其为合格。
B.
一批零件的实际尺寸最大为20.0lmm,最小为19.98mm,则可知该零件的上偏差是十0.01mm,下偏差是—0.02mm。
C.
j~f的基本偏差为上偏差。
D.
对零部件规定的公差值越小,则其配合公差也必定越小。
E.
H7/h6与H9/h9配合的最小间隙相同,最大间隙不同。
查看完整题目与答案
【单选题】Then there are the broken relationships, divorces and family alienation. Question: What does the author mean by saying "family alienation"?
A.
Family members are less close.
B.
Family are less lucky.
C.
Family members are less upset.
D.
Family are less rich.
查看完整题目与答案
【简答题】下述拆卸操作中,方法正确的有( )。(III)A.B.C.D. D
查看完整题目与答案
【简答题】下述有关衣原体的论述中不正确的是
查看完整题目与答案
相关题目：
【单选题】Then there are the broken relationships, divorces and family alienation. Question: What does the author mean by saying "family alienation"?
A.
Family members are less close.
B.
Family members are less lucky.
C.
Family members are less upset.
D.
Families are less rich.
查看完整题目与答案
【单选题】Section A Vocabulary. Directions: There are 20 incomplete sentences in this part. For each sentence there are four choices marked A), B), C) and D). Choose the ONE answer that best completes the sente...
A.
separate
B.
compare
C.
choose
D.
distinguish
查看完整题目与答案
【单选题】— If there are ____ trees, the air will be cleaner. — I agree. Then there will be less pollution.
A.
much
B.
less
C.
fewer
D.
more
查看完整题目与答案
【判断题】.为了分析ECU是否有故障,应将故障车上的ECU换到同类型非故障车来做对比判别。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】How students ultimately handle stress may depend on their personal test-taking abilities. There are people who always wait until the last minute, and make it much harder than it needs to be. And then ...
A.
Students who put off their work until the last moment often find the exams more difficult than they actually are.
B.
Most professors agree whether to give an in-class or a take-home exam depends on type of course being taught.
C.
The author dropped out of college some forty years ago.
D.
Some students think take-home exams will eat up their free time.
E.
Elderly students find it hard to keep up with the rapid changes in education.
F.
Some believe take-home exams may affect students' performance in other courses.
G.
Certain professors believe in-class exams are ultimately more helpful to students.
查看完整题目与答案
【多选题】Part II Cultures and Intercultural communication (2'×10=20’)Directions: There are 10 incomplete sentences in this section. For each blank there are four choices marked A, B, C and D. Choose the ones t...
A.
anxiety
B.
assuming similarity instead of differences
C.
uncertainty
D.
fear
查看完整题目与答案
【多选题】下述论述中不正确的有 。
A.
无论气温高低,只要零件的实际尺寸都介于最大、最小极限尺寸之间,就能判断其为合格。
B.
一批零件的实际尺寸最大为20.0lmm,最小为19.98mm,则可知该零件的上偏差是十0.01mm,下偏差是—0.02mm。
C.
j~f的基本偏差为上偏差。
D.
对零部件规定的公差值越小,则其配合公差也必定越小。
E.
H7/h6与H9/h9配合的最小间隙相同,最大间隙不同。
查看完整题目与答案
【单选题】Then there are the broken relationships, divorces and family alienation. Question: What does the author mean by saying "family alienation"?
A.
Family members are less close.
B.
Family are less lucky.
C.
Family members are less upset.
D.
Family are less rich.
查看完整题目与答案
【简答题】下述拆卸操作中,方法正确的有( )。(III)A.B.C.D. D
查看完整题目与答案
【简答题】下述有关衣原体的论述中不正确的是
查看完整题目与答案
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