【单选题】【消耗次数：1】
下图所示网络中，f点发生三相短路时，关于短路点右侧网络中的电流正确的说法是（）。
①
不存在电流
②
过渡过程中存在电流
③
电流始终存在
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相关题目
【单选题】
下图所示网络中，f点发生三相短路时，关于短路点右侧网络中的电流正确的说法是（）。<imgsrc="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191205/20191205075635_277.png"alt=""/>
①
不存在电流
②
过渡过程中存在电流
③
电流始终存在
【单选题】
在负载为三角形连接的对称三相电路中，各线电流与相电流的关系是( )。
①
大小、相位都相等
②
大小相等、线电流超前相应的相电流30°
③
线电流大小为相电流大小的 倍、线电流超前相应的相电流30°
④
线电流大小为相电流大小的 倍、线电流滞后相应的相电流30°
【单选题】
在三相交流电路中，当负载为对称且三角型连接时，线电流与相电流的相位关系是
①
线电压超前相电压300
②
线电压滞后相电压300
③
线电流超前相电流300
④
线电流滞后相电流300
随机题目
【单选题】
If you bear any visible scars of atomic burns, your children will encounter prejudice ______ those who do not.
①
on the side of
②
at the side of
③
on the part of
④
at the part of
【单选题】
As the offender _______ his crime, he was dealt with leniently.
①
had admitted
②
had confessed
③
had recognized
④
had realized
【单选题】
I now stood on the site where thousands upon thousands of others had lingered on to die ____ slow agony.
①
at
②
from
③
of
④
in
【单选题】
The few Americans and Germans seemed just as _____ as I was.
①
constrained
②
curbed
③
inhibited
④
withhold
【单选题】
Little girls and elderly ladies in kimonos ___teenagers and women in western dress.
①
rubbed the shoulder with
②
rubbed shoulders with
③
rubbed shoulder with
④
rubbed the shoulders with
【单选题】
They would also like to _____ the atomic museum.
①
demolish
②
destroy
③
ruin
④
smash
【单选题】
The taxi driver _______ at me in the rear-view mirror when I got on the car.
①
smile
②
laughed
③
grinned
④
stared
【单选题】
But later my hair began to fall_______, and my belly turned to water.
①
over
②
through
③
out
④
away