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【单选题】
若要提高某放大器的输入电阻且使输出电压稳定,应采用( )负反馈。A.
电流串联
B.
电压串联
C.
电流并联
D.
电压并联
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举一反三
【单选题】The main purpose of the excerpt is that______.
A.
television is a good means of education
B.
television has helped children improve their imaginations
C.
children watch television extensively and their viewing habits need to be controlled
D.
parents should encourage their children to watch more TV programs
【单选题】Most television viewers don't remember ______ they hear after they listen to the weather report. [ ]
A.
that
B.
which
C.
what
D.
whether
【简答题】根据路由选择策略，网桥分为 【5】和源路由网桥。
【单选题】听力原文：M: Can't you turn off the television? I can't concentrate on my study and I have to take a test tomorrow morning. W: Can't you see I'm in the middle of watching an interesting program? Why not go...
A.
The woman is inviting the man to watch the program with her.
B.
The woman thinks the man should not study in the library.
C.
The woman would not turn off the television.
D.
The woman permits the man to turn off the television.
【简答题】作业16.doc
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