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【单选题】
(2005年)对于非线性控制系统的描述函数分析，试判断下列表述中哪的?( )A.
是等效线性化的一种
B.
只提供稳定性能的信息
C.
不适宜于含有线性环节的系统
D.
适宜于非线性元件的输出中高次谐波已被充分衰减，主要为一次谐波分量系统
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【简答题】I suppose the terms of payment are agreeable ___ you.
【单选题】. We_____ booked . Look , this restaurant is almost empty.
A.
must have
B.
can’t have
C.
should have
D.
shouldn't have
【单选题】At this time of the day, the road is empty except ______ a few cars.
A.
to
B.
of
C.
for
D.
in
【简答题】属于不稳定排序的方法有( )。(至少说出三种排序方法)
【单选题】A user received an email from their bank asking them to login and verify their personal information.The user complies and fills in the requested information. Days later the user notices their checking...
A.
Spam
B.
Phishing
C.
Adware
D.
A Trojan
【简答题】一名合格的期货经纪人必须满足哪些条件?
【单选题】This bottle is nearly empty; you ( ) a lot.
A.
could have drunk
B.
ought to drink
C.
must drink
D.
must have drunk
【单选题】At this time of the day, the road is empty except ( ) a few cars.
A.
in
B.
on
C.
for
D.
with
【单选题】使用计算机录制所有时,采用下列那种参数设置,录音的声音质量最高?
A.
分辨率和采样频率都设为最低
B.
分辨率和采样频率都设为最高
C.
分辨率设为最低,采样率设为最高
D.
分辨率设为最高,采样率设为最低
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