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【简答题】
关于行政许可的理解，下列说法不正确的是（ ）。
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举一反三
【单选题】在纯电容正弦交流电路中,特点是______。
A.
功率因数为0
B.
电容是耗能元件
C.
若端电压u和总电流i参考方向一致,则u、i同相
D.
若端电压u和总电流i参考方向一致,则u落后i的角度可能为30°
【单选题】Passage Three Question 23 to 25 are based on the passage you have just heard. 23A) Surgeons were not sure of the risk of operation. B) It’s very hard to find a suitable organ donor. C) Human body was ...
A.
Surgeons were not sure of the risk of operation.
B.
It’s very hard to find a suitable organ donor.
C.
Human body was not receptive to foreign tissue.
D.
Patient’s white blood cells would be destroyed.
【简答题】新中国成立后修建的第一条铁路是什么?
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