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【单选题】
某最小相位系统的结构图如图a,b=1对应对数频率曲线如下图b所示,判断该系统稳定的b值范围( ) (a) (b)
A.
2
B.
0
C.
0
D.
b>10
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举一反三
【单选题】Hearing the bell ringing, out    .A.rushing the children B.rushed the childrenC.were rushing the chi
A.
Hearing the bell ringing, out____. A.rushing the children
B.
rushed the children
C.
were rushing the children
D.
the children rushed
【简答题】He is a very (patient) man, always rushing into things.
【简答题】A young executive was traveling down a neighborhood street.He was watching for kids rushing out from between parked cars and slowed down when he thought he saw something.As his car passed,no children ...
【单选题】He felt cheap about rushing to get in line before the old lady carrying heavy parcels.
A.
felt inferior and ashamed
B.
felt not worthwhile of doing something
C.
felt bad about doing something
D.
felt unhappy about doing something
【单选题】请问以下哪项为网站首页默认的名称?()
A.
index或default
B.
index或about
C.
news 或default
D.
index 或 first
【单选题】The door burst open and____, shouting with anger.
A.
rushing in a crowd
B.
in rushing a crowd
C.
in rushed a crowd
D.
in did a crowd rush
【单选题】His ______ behavior. made everyone nervous. He was always rushing to open doors and perform. other small tasks, apologizing unnecessarily for any inconvenience that he might have caused.
A.
oblivious
B.
observant
C.
obsequious
D.
obsolescent
【单选题】He could only ____ in bed with all kinds of things rushing through his mind. [     ]
A.
stay wake
B.
stay awake
C.
keep wake
D.
get awake
【单选题】最佳的人工泪液为()
A.
含有抗生素的液体
B.
普通滴眼液
C.
自家血清
D.
含有免疫球蛋白的液体
E.
以上均不是
【单选题】It’s hard for people to make their way ________.
A.
in the rushing hours
B.
at the rushing hours
C.
at the rush hours
D.
on the rush hours
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