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【单选题】
在共发射极基本放大电路中,当输入信号为正弦电压时,输出电压波形的正半周会出现失真,则这种失真为( )失真。
A.
截止
B.
饱和
C.
非线性
D.
频率
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【单选题】— I thought you were proud of the coat I ________. — I'm afraid not. You'd better change it for another. [     ]
A.
would wear
B.
had worn
C.
wore
D.
wear
【单选题】经济结构出现的重大变化,意味着过去几年来我们促进产业结构转型升级取得阶段性成果,也意味着中国经济进入了一个从高速增长阶段转向高质量发展阶段的历史性“( )”。
A.
窗口期
B.
瓶颈期
C.
飞跃期
D.
腾飞期
【单选题】最先发现肺炎链球菌转化现象的科学家是
A.
Griffith
B.
Avery
C.
Luria
D.
Lederberg
E.
Delbruck
【单选题】听力原文:M: If you're not too busy tonight, how about catching a movie? W: I thought you had to work on that big presentation you are making in front of the board members tomorrow. Have you already prepar...
A.
Today.
B.
Tomorrow.
C.
This Friday.
D.
Next week.
【单选题】—Did you take enough money with you? —No, I needed ______ I thought I would.
A.
not so much as
B.
as much as
C.
much more than
D.
much less than
【单选题】--What are you doing this weekend? --I haven't decided yet.____________? --Well, I thought we could have another family party.
A.
What
B.
All right
C.
Why
D.
Pardon
【简答题】在图(a)所示电路中,如果与电阻R 2 串联了一个U s3 =10V的电压源,其余参数不变,支路电流I 1 ,I 2 又为多少?
【单选题】下列语句没有语病的一项是( )
A.
作为新演员,他做到了不耻下问,一遍遍去问导演和前辈:我这样演可以吗 ?
B.
我们是吃饭长大的,也是读书长大的,更是在爱里长大的。
C.
“ 黑土·硒都”为主题的美食节开 幕在即,绥化市政府号召市民做好招待八方来客。
D.
人的一生约有一半左右的时间都在思考,只不过成功者总在思考有意义的事。
【单选题】I had never expected you to turn _______ at the meeting. I thought you were in Shanghai。
A.
around
B.
on
C.
in
D.
up
【单选题】You will be at a(n)_____if you have thought about the interview questions in advance in applicat
A.
26. You will be at a(n)_____if you have thought about the interview questions in advance in application for a job. A.favor
B.
advantage
C.
benefit
D.
profit
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