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【单选题】
典型的差分放大器能够抑制零点漂移的主要原因是:( )A.
采用了恒温措施；
B.
采用了阻容耦合放大电路；
C.
采用了对称的电路结构和射极负反馈电阻RE来抑制共模信号；
D.
以上几种都包括。
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反馈参考答案：
举一反三
【单选题】Country risk refers to political risk existing in a country.
A.
Right
B.
Wrong
C.
Doesn't say
【简答题】He hasn't come yet ． What do you consider _______ to him ？ A ． happens B ． has happened C ． happening D ． to happen
【单选题】They consider ________ their duty to be loyal to their country.
A.
this
B.
as
C.
it
D.
that
【简答题】Most people consider this library to be the oldest in the country.
【单选题】We should consider not only the country's short-term interest but also the long-term interest.
A.
我们要考虑的不是国家的短期利益, 而是其长期利益。
B.
我们不仅要考虑国家的短期利益, 也要考虑国家的长期利益。
C.
我们不仅要考虑国家的短暂利益, 也要考虑其长久利益。
D.
我们不仅要考虑国家近期的兴趣, 也要考虑未来的兴趣。
【单选题】He hasn't come yet. What do you consider _______ to him ？
A.
happens
B.
hashappened
C.
happening
D.
to happen
【单选题】Many people consider her______the best singer that this country has ever produced.
A.
being
B.
to be
C.
having been
D.
is
【简答题】作业3-二维铣削加工加强版.doc
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