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【单选题】
差分放大电路由双端输入改为输入,则差模电压放大倍数( )。A.
不变
B.
提高一倍
C.
提高为原来的2倍
D.
减小为原来的一半
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举一反三
【单选题】December is the month ______ is usually the coldest in our province.
A.
whose weather
B.
the weather
C.
its weather
D.
when the weather
【单选题】December is the _____________ month of the year. [ ]
A.
twelve
B.
twelfth
C.
twelveth
D.
the twelfth
【简答题】正确的词形填空 小题1:December is the (twelve) month of the year . 小题2:Sony is the ________ (thin ) boy in the class . 小题3:_________(luck), he was not badly hurt. 小题4:The little boy’s (die) made everyone sad. 小...
【单选题】December is the _____ month of the year. [ ]
A.
twenty
B.
twelve
C.
twentieth
D.
twelfth
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