【单选题】【消耗次数：1】
线路停电时，必须按照（）顺序进行操作，送电时相反。
①
断路器、负荷侧隔离开关、母线侧隔离开关
②
断路器、母线侧隔离开关、负荷侧隔离开关
③
负荷侧隔离开关、母线侧隔离开关、断路器
④
母线侧隔离开关、负荷侧隔离开关、断路器
参考答案：
复制
纠错
相关题目
【单选题】
将重要的电气设备如发电机、变压器、断路器、隔离开关、负荷线路等电气设备按照一定的技术规范连接起来，形成一定生产流程电路，就构成了（）。
①
电气主接线
②
发电厂
③
变电所
随机题目
【简答题】
将句子翻译成英文：无论你多忙，都应该抽时间回学校参加同学聚会。（no matter how）
【单选题】
You need to ( ) how much food we will need for the picnic.
①
work out
②
work in
③
break out
④
break in
【单选题】
He ( ) up in hospital due to a block in his artery.
①
failed
②
ended
③
sorted
④
died
【单选题】
You can never ( ) that year and the brand-new feeling that your first year of college brings.
①
restore
②
repeat
③
replace
④
remove
【单选题】
He was ( ) old enough to drive a car at the time of the accident.
①
rare
②
barely
③
eventually
④
particularly
【单选题】
Only they who ( ) their duties in everday matters will fulfill them on great occasions.
①
attribute
②
explore
③
fulfill
④
generate
【单选题】
( ) you fail, you will have the satisfaction of knowing that you tried.
①
Ever after
②
Even if
③
Now that
④
Provided that
【单选题】
While typing，Helen has a habit of stopping ( ) to give her long and flowing hair a smooth.
①
occasionally
②
simultaneously
③
eventually
④
promptly
【单选题】
Her husband sent her a bunch of roses ( ) with pretty bows.
①
ties
②
torn
③
link
④
tied
【单选题】
The young man left a ( ) to his girlfriend, asking her to come to his apartment.
①
blank
②
loan
③
stem
④
note