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【单选题】
以下是一些系统函数的收敛域,则其中稳定的是( )A.
|z| < 0.5
B.
|z| > 2
C.
|z| < 0.9
D.
0.5 < |z| < 2
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反馈参考答案：
举一反三
【简答题】“Can ’ t youread?”Mary said to the notice ． A．angri1y pointing B ． and point angrily C ． angrily pointed D ． and angrily pointing
【简答题】抛物线在 处,曲率最大.
【单选题】Do you notice the furniture in this room is quite different from________ in yours?
A.
that
B.
those
C.
one
D.
it
【单选题】This passage is probably taken from______.
A.
an advertisement of an airline
B.
a notice for airline passengers
C.
a schedule of an international flight
D.
an introduction to an airline company
【简答题】His explanation that he didn't see the notice is unsatisfactory．
【单选题】How does a meeting notice differ from an announcement?_____.
A.
A notice cannot be rejected
B.
An announcement cannot be rejected
C.
A notice also invites the recipients to an
D.
An announcement inform the recipients of an
【简答题】Don’t talk to me; I’m busy with my iPhone Riding a London subway, a person from China will notice one major difference: in London, people do not look at each other. In fact, eye contact is avoided at ...
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