【判断题】【消耗次数：1】
负载星形连接时，相电压等于线电压，相电流不等于线电流。
①
正确
②
错误
参考答案：
复制
纠错
相关题目
【单选题】
在三相交流电路中，当负载为对称且星型连接时，线电压与相电压的相位关系是
①
线电压超前相电压30度
②
线电压滞后相电压30度
③
线电压与相电压同相
④
线电压与相电压反相
随机题目
【单选题】
Once our chickens started laying eggs, we had such a
____ of eggs that we were giving many away to our
neighbors.
①
output
②
surplus
③
production
④
plenty
【单选题】
Most importantly, such an experience helps ____ a heightened sensitivity to other cultures and will bring about a greater appreciation of one’s own culture as well.
①
coach
②
forsake
③
foster
④
censor
【单选题】
She didn’ t come to the party last Sunday._____, she must
have made the party more exciting.
①
If she came
②
Would she come
③
Had she come
Did she come
【单选题】
Some companies have introduced flexible working time with less emphasis on pressure ____.
①
than more on efficiency
②
and more on efficiency
③
and more efficiency
④
than efficiency
【单选题】
In some cases, your instructor may tell you the topics ____ or may give you a choice of topics to write about.
①
in advance
②
ahead of
③
above al
④
right away
【单选题】
Nancy was surprised that they have ____. They
seemed to be a happy couple.
①
split up
②
broken down
③
fallen through
④
knocked out
【单选题】
— Whichsongdoyoulikebetter，Lucy?— IpreferthesongLittleApple ______ canattractmanypeople．
①
which
②
who
③
whom
④
where
【单选题】
Once ____, this power station will supply all the
neighboring towns and villages with electricity.
①
it being completed
②
it completed
③
completed
④
it completes
【单选题】
The Brownings have not ____ yet and I doubt whether they will come.
①
turned in
②
turned out
③
turned up
④
turned to