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【单选题】
为了稳定输出电压，放大电路应引入( )。A.
电压负反馈
B.
电流负反馈
C.
串联负反馈
D.
并联负反馈
E.
直流负反馈
F.
交流负反馈
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反馈参考答案：
举一反三
【简答题】比较人权与基本权利异同
【单选题】听力原文：M: What time are you leaving tomorrow? W: You mean to go to the bank? M: Yes, I'd like to go with you if I may. W: I'd be glad to take you, I plan to leave here about nine-thirty. What does the m...
A.
To visit the woman's house.
B.
To ask for a lift.
C.
To go out for a holiday.
【单选题】听力原文：M: We still haven't decided on the time for lunch tomorrow. W: Oh, I forgot to tell you. I won't be able to make it after all. Q: What does the woman mean? (13)
A.
She will not have time to prepare lunch.
B.
She has to cancel her plan to have lunch with the man.
C.
She does not remember discussing the matter.
D.
She would rather wait until tomorrow to decide.
【单选题】听力原文：M: Will you please return my stop watch? I need it to time the races tomorrow. W: Oh, hum. I'm not sure how to tell you. But it fell on the ground and now the second hand doesn't work. M: Well, d...
A.
She needs a watch that shows seconds.
B.
She can't find the man's stopwatch.
C.
She damaged something she borrowed from the man.
D.
She can't assist the man tomorrow.
【单选题】听力原文：W: I'd like to see the an exhibition tomorrow, Can you tell me what time it's open? M: Yes. it's open from 8 until 6, but there's an hour lunch break. Q: For how many hours is the art exhibition ...
A.
Eight hours.
B.
Seven hours.
C.
Nine hours.
D.
Ten hours.
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