【单选题】【消耗次数：1】
在电力系统中，按照负荷的重要程度共分成（）类(级)。
①
Ⅰ
②
Ⅱ
③
Ⅲ
④
Ⅳ
参考答案：
复制
纠错
相关题目
【单选题】
在电力系统潮流计算中，PV节点的待求量是()
①
Q、<imgsrc="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191205/20191205080031_752.png"alt=""/>
②
P、Q
③
V、<imgsrc="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191205/20191205080043_336.png"alt=""/>
④
P、V
随机题目
【单选题】
When you have finished with that video tape, don’t forget to put it in my drawer, ---_____?
①
do you?
②
will you
③
can you
④
dont
【单选题】
I agree with you to a certain _________ but not entirely.
①
part
②
extent
③
level
④
way
【单选题】
There is no enough______ on the corner to put the table
①
room
②
floor
③
space
④
place
【单选题】
A fire broke out at the school but the teacher were able to lead the ___________ children to safety.
①
frightened
②
frightening
③
frighten
④
fright
【单选题】
I dont have to introduce the boy to you ___-you know him.
①
since
②
until
③
unless
④
but
【单选题】
The author was _______ in a small village, as is described in some of his short stories.
①
brought out
②
brought in
③
brought up
④
brought about
【单选题】
Please drop in whenever you can.. I’d like to keep _________ touch..
①
in
②
to
③
on
④
with
【单选题】
_______ of the twins was arrested, because I saw both at a party last night.
①
None
②
Both
③
Neither
④
D. All