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【多选题】
题目动力阀控制系统的功能是控制发动机进 气道的( ),一适应发动机不同转速和负 荷进气量需求,从而改善发动机的动力性。
A.
空气流通截面大
B.
空气流通截面大小
C.
横截面积大小
D.
体积面积大小
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【简答题】a zealou advocate of sth or a preacher of the Christian idea
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【单选题】The author uses the example of the street corner preacher (para. 2) in order to make the point that
A.
you should not trust the word of people who speak on street corners
B.
facts speak louder than opinions
C.
ancient wars described in the Bible were not included in the study
D.
the Bible is not a reliable source of historical information
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【单选题】I would like to exchange some money?----- _________.
A.
Please go to the bank
B.
How much would you like to exchange? I’m sorry, I don’t know the exchange rate today.
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【单选题】The preacher's wife is older than the man's wife.
A.
Right
B.
Wrong
C.
Doesn't say
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【多选题】以下关于“热平衡状态”和“非平衡状态”的描述正确的是
A.
半导体处于热平衡状态时，有确定的载流子浓度，即平衡载流子，且 。
B.
半导体处于热平衡状态时，整个材料具有统一的费米能级 。
C.
半导体处于热平衡状态时，载流子的产生过程与复合过程达到动态平衡 。
D.
在外界作用下，半导体中额外产生了载流子，即非平衡载流子，半导体进入非平衡状态 。
E.
在外界作用下，如果载流子的产生过程与复合过程达到动态平衡，载流子浓度具有确定的值，此时半导体为热平衡态 。
F.
在外界作用下，稳定时，载流子的产生过程与复合过程达到动态平衡，载流子浓度具有确定的值，但此时半导体为非平衡态 。
G.
半导体处于非平衡态时，整个材料不具有统一的费米能级 。
H.
半导体处于非平衡态时，导带电子的分布用导带准费米能级表征，价带空穴的分布用价带准费米能级表征 。
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【判断题】半导体材料的载流子浓度与费米能级有关。
A.
正确
B.
错误
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【单选题】Which of the following is a synonym of “ candid ” in “ his candid, pessimistic assessment ” ?
A.
frank
B.
daring
C.
brave
D.
bold
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【单选题】The preacher's wife was more grief when getting the e-mail.
A.
Right
B.
Wrong
C.
Doesn't say
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【单选题】The family of the preacher's wife were surprised to read the e- mail.
A.
Right
B.
Wrong
C.
Doesn't say
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【单选题】I might buy a TV, if I can find a ______in the sales.
A.
bargain
B.
trade
C.
business
D.
exchange
查看完整题目与答案
相关题目：
【简答题】a zealou advocate of sth or a preacher of the Christian idea
查看完整题目与答案
【单选题】The author uses the example of the street corner preacher (para. 2) in order to make the point that
A.
you should not trust the word of people who speak on street corners
B.
facts speak louder than opinions
C.
ancient wars described in the Bible were not included in the study
D.
the Bible is not a reliable source of historical information
查看完整题目与答案
【单选题】I would like to exchange some money?----- _________.
A.
Please go to the bank
B.
How much would you like to exchange? I’m sorry, I don’t know the exchange rate today.
查看完整题目与答案
【单选题】The preacher's wife is older than the man's wife.
A.
Right
B.
Wrong
C.
Doesn't say
查看完整题目与答案
【多选题】以下关于“热平衡状态”和“非平衡状态”的描述正确的是
A.
半导体处于热平衡状态时，有确定的载流子浓度，即平衡载流子，且 。
B.
半导体处于热平衡状态时，整个材料具有统一的费米能级 。
C.
半导体处于热平衡状态时，载流子的产生过程与复合过程达到动态平衡 。
D.
在外界作用下，半导体中额外产生了载流子，即非平衡载流子，半导体进入非平衡状态 。
E.
在外界作用下，如果载流子的产生过程与复合过程达到动态平衡，载流子浓度具有确定的值，此时半导体为热平衡态 。
F.
在外界作用下，稳定时，载流子的产生过程与复合过程达到动态平衡，载流子浓度具有确定的值，但此时半导体为非平衡态 。
G.
半导体处于非平衡态时，整个材料不具有统一的费米能级 。
H.
半导体处于非平衡态时，导带电子的分布用导带准费米能级表征，价带空穴的分布用价带准费米能级表征 。
查看完整题目与答案
【判断题】半导体材料的载流子浓度与费米能级有关。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Which of the following is a synonym of “ candid ” in “ his candid, pessimistic assessment ” ?
A.
frank
B.
daring
C.
brave
D.
bold
查看完整题目与答案
【单选题】The preacher's wife was more grief when getting the e-mail.
A.
Right
B.
Wrong
C.
Doesn't say
查看完整题目与答案
【单选题】The family of the preacher's wife were surprised to read the e- mail.
A.
Right
B.
Wrong
C.
Doesn't say
查看完整题目与答案
【单选题】I might buy a TV, if I can find a ______in the sales.
A.
bargain
B.
trade
C.
business
D.
exchange
查看完整题目与答案