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【单选题】
关于提高功率因数,下列说法中错误的是( )。A.
提高 功率因数是为了提高设备容量利用率，同时减少了线路电能损耗。
B.
对于容性负载，可以通过在负载两端并联电感的方法提高电路的功率因数。
C.
提高功率因数后电路总电流的有效值变小了，电源无功功率输出减少了。
D.
提高功率因数就是想办法使原负载 的功率因数变大，从而提高电路的输电效率。
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反馈参考答案：
举一反三
【单选题】I am too busy now. If I____ free, I ____to the cinema with you.
A.
am; will go
B.
am; would go
C.
were; would go
D.
was; was going
【简答题】高渗性脱水
【单选题】______ ，I would take his advice.
A.
Had I been you
B.
Were I you
C.
Be I you
D.
Should I were you
【单选题】I apologize if I _______ you, but I assure you that it was unintentional.
A.
should offend
B.
were to offend
C.
had offended
D.
offended
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