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【简答题】
某电路中,三极管静态时各极对地的电位如图所示,则其工作于( )状态。(放大、饱和、截止)(设三极管和二极管均为硅管)
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【单选题】Why does Mr. Cotton call?
A.
He calls to cancel his reservation.
B.
He calls to change his ticket.
C.
He calls to check his ticket.
D.
He calls to cancel his reservation and make another.
【单选题】It's said that he will __________his uncle's business when he is mature enough to deal with the public relations. [ ]
A.
take over
B.
think over
C.
hand over
D.
go over
【简答题】A．He calls to cancel his reservation. B．He calls to change his ticket. C．He calls to check his ticket. D．He calls to cancel his reservation and make another.
【单选题】The author was surprised to hear the calls to prayer because ______.
A.
he was far away from the city, yet he could hear them clearly
B.
he did not think there would be any calls
C.
the calls came from the mosques
D.
the calls were no different over loud-speakers
【单选题】he calls at every house in the street he______ everyone
A.
shouts at
B.
calls
C.
cried out at
D.
visits
【简答题】表达式 Len(Str(3.14,2,2)) 的值为______。
【简答题】表达式 Len(Str(3.14)) 的值为______。
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