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【单选题】
微分环节的频率特性,当频率ω从0变化至∞时,其极坐标中的奈氏曲线是A.
负虚轴
B.
负实轴
C.
正虚轴
D.
正实轴
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参考解析：
知识点：
皮皮学刷刷变学霸
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A.
since
B.
that
C.
which
D.
/
【单选题】— Aren't you tired, Caroline? — ____ I like going shopping. [ ]
A.
Why not?
B.
Yes, of course.
C.
Is that right?
D.
Not at all!
【单选题】—Why did you quit your job? —It was good salary, but I didn’t like the working conditions.
A.
in need of
B.
in face of
C.
in favor of
D.
in terms of
【单选题】— Why did you come in without my permission? — _______.I won't behave like that again. [ ]
A.
No problem
B.
I'm sorry
C.
I suppose so
D.
Take it easy
【简答题】ARM 系列微处理器支持的数据类型有 : 、 和 等三种类型。
【单选题】—Now that you like the car so much, why not drive it back? —Well, I can't afford _____ car. [ ]
A.
that expensive a
B.
a that expensive
C.
that an expensive
D.
an expensive that
【单选题】Why did you buy the suit _______ you didn't like it? [ ]
A.
which
B.
that
C.
since
D.
what
【单选题】—Why did you quit your job? —I didn’t like the working conditions _________ the good salary.
A.
in need of
B.
in spite of
C.
in terms of
D.
in favor of
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