皮皮学，免费搜题
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【单选题】
RLC串联电路在f0时发生谐振，当频率增加到2f0时，电路性质呈A.
电阻性；
B.
电感性；
C.
电容性；
D.
中性
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】That isn't my own ear; ____________ is being repaired.
A.
my
B.
mine
C.
my own
D.
my ’s
【单选题】The work is so difficult that we can't finish it on time ______. [ ]
A.
of our own
B.
to our own
C.
on our own
D.
with our own
【单选题】As for my own work, much of it is being in the right place at the right time. [ ]
A.
because
B.
since
C.
due to
D.
for
【单选题】The film My Own Swordsman kept us ______ all the time.
A.
laugh
B.
laughed
C.
laughing
D.
to laugh
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