–Hello,howareyou?嗨,你好吗?-.我很好,谢谢()
A. Hello. how are you?
B. How do you do ?
C. Fine. thank you.
D. That’s OK
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-How’sisyourfamily?你的家人都还好吧?-.都还行()
A. Thanks all the same.
B. Thanks for calling.
C. Not too bad.
Don’t mention it
–IsMarythere?我想找玛丽。-.我就是()
A. Speaking.
B. I’m not Mary.
C. Who are you?
D. Mary is well today?
分布式电源的接入点是指分布式电源接入电网的连接处,该电网既可能是公共电网,也可能是用户电网()
A. 正确
B. 错误
对电网而言高电压会增加变压器的励磁损耗,并造成输变电设备绝缘寿命缩短甚至绝缘破坏()
A. 正确
B. 错误