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【单选题】
在RLC串联谐振电路中,增大电阻R,将使( )。A.
谐振频率降低
B.
电流谐振曲线变尖锐
C.
电流谐振曲线变平坦
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皮皮学刷刷变学霸
举一反三
【单选题】What do we know about the man?
A.
He doesn't know how to get money.
B.
He doesn't know how to write his signature.
C.
He doesn't know how to :make out his check.
【单选题】Do you know if _______ back next week ? If he ________ back , please let me know .
A.
he will come , comes
B.
will he come , came
C.
he comes , will come
D.
he will come , will come
【单选题】Do you know if ______ back next week? If he ______ back, please let me know. [ ]
A.
he comes; will come
B.
will he come; comes
C.
he will come; comes
D.
will he come; will come
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