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【单选题】
设 某 晶 体 管 三 个 极 的 电 位 分 别 为 U E = 13V , U B = 12.3V , U C = 6.5V , 则 该 管 是 为 ( ) 。
A.
PNP 型 锗 管
B.
NPN 型 锗 管
C.
PNP 型 硅 管
D.
NPN 型 硅 管
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举一反三
【单选题】Passage Unit 1 ,Book 1 2. What is the main differencein adily life between the UK nad Canada?
A.
Canada is much colder in winter than the UK
B.
The UK is much colder in winter than Canada
C.
Products sold in Canada will have a sales tax added to the price
D.
Products sold in the UK are often more expensive than in Canada
【单选题】Passage Unit 1 ,Book 1 1. What is the major reason for American and British people to move to Canda?
A.
Canda is more secure
B.
Canda is more modern
C.
Canadian people are friendlier
D.
Canadian people are more beautiful
【简答题】Section C Directions: This section is to test your ability to comprehend short passages. You will hear a recorded passage. After that you will hear five questions. Both the passage and the questions w...
【单选题】Passage Unit 1 ,Book 1 3.Which is true avout the cost of living in Canada?
A.
Sales taxes are lower
B.
The price of wine is lower
C.
The cost of beer is higher
D.
The cost of petrol is higher
【单选题】听 Passage in Unit 2 ,Book 1 What kind of children does the speaker talk about
A.
Children who helped animals
B.
Children who kept animals as pets
C.
Children who grew up like animals
D.
Children who liked to spend time with animals
【单选题】科学研究活动本身会涉及到伦理道德,而科研伦理问题的产生是有他自己 的根源。例如,某些时候在经济利益冲突的情况下,科研人员可能会迫于药厂方 面的压力而不报告不利于新药上市的研究结果。这种情况是由于( )
A.
道德困境产生的伦理问题
B.
利益冲突引发的伦理问题
C.
科研人员的道德观念差异而导致的伦理问题
D.
攻治因素引发的伦理问题
【单选题】听 Passage in Unit 1 ,Book 1 4.What do we learn about insects in Canada?
A.
They dont bite people
B.
They come out in winter
C.
They are in small numbers
D.
They can survive cold winter
【单选题】听 Passage in Unit 2 ,Book 1 8. What eventually happened to the wild children?
A.
Most of them were saved
B.
All of their parents were punished
C.
Most of them still behaved like animals
D.
All of them learnt to speak like humans.
【简答题】Section C Directions: there are 2 passages in this section. each passage is followed by some questions or unfinished statements for each of them there are four choices marked a, b, Cand D You should d...
【单选题】科学研究活动本身会涉及到伦理道德,而科研伦理问题的产生是有他自己的根源。例如,某些时候在经济利益冲突的情况下,科研人员可能会迫于药厂方面的压力而不报告不利于新药上市的研究结果。这种情况是由于()
A.
道德困境产生的伦理问题
B.
利益冲突引发的伦理问题
C.
因科研人员的道德观念差异而导致的伦理问题
D.
政治因素引发的伦理问题
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