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【单选题】
正弦交流电路的无功功率表征该电路中储能元件的( )。
A.
瞬时功率
B.
平均功率
C.
瞬时功率最大值
D.
以上答案都不对
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She , s a doctor.
B.
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C.
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A.
流速
B.
压力
C.
流量
D.
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A.
She is twenty.
B.
No,she isn’t
C.
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D.
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A.
压力和流量
B.
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C.
压力
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A.
营业推广
B.
人员推销
C.
广告
D.
诱导型广告
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