皮皮学,免费搜题
登录
搜题
【多选题】
为保证 零序电流速断 保护的选择性,其动作电流按下述原则整定。( )
A.
躲过被保护线路末端发生单相或两相接地短路时流过本线路的最大零序电流
B.
躲过手动合闸或自动重合闸期间断路器三相触头不同所出现的最大零序电流
C.
躲过非运行期间振荡所造成的最大零序电流
D.
躲过被保护线路末端发生单相或两相接地短路时流过本线路的最小零序电流
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【单选题】小肠液是由十二指肠和肠腺细胞分泌的一种( )液体
A.
酸性
B.
弱酸性
C.
碱性
D.
弱碱性 三、填空题
【简答题】根据课文内容及首字母提示填空 I'm very p 1 that I have been chosen to speak to  you all today. As we all know, it is the t  2 to say good-  bye to everyone. We have successfully finished our junior  high school e  3...
【简答题】I'm glad you showed great interest in what is happening in China. You are right. I am very 21 of the great achievement that the Long March-2F carrier rocket successfully sent China's manned Shenzhou-9...
【单选题】小肠液是由十二指肠和肠腺细胞分泌的一种( )性液体。
A.
酸性
B.
弱酸性
C.
碱性
D.
弱碱性
【简答题】中性粒细胞增多的原因有哪些
【简答题】根据问题,选择最佳答语,每个答语只能选一次。 (     )1. Have a good holiday! (     )2. My pen doesn't work.  Can I borrow yours? (     )3. Hello! May I speak to Wu Dong? (     )4. What's your hobby? (     )5. Chinese climbe...
【简答题】I f you successfully complete the training program , you will ( interview ) __________ by the company for the final decision
【简答题】Choose the best response from A to F according to the sentences given. Each choice should be used only once. 1. Have a good holiday! 2. My pen doesn't work.Can I borrow yours? 3. Hello!May I speak to ...
【多选题】中美 Unit 9  Warm up 1. to visit someone unexpectedly                                                                  ________________ 2. to make less progress than you are expected to                 ...
A.
dropped in
B.
fallen behind with
C.
on call
D.
get through
E.
accidentally
F.
make it up to
G.
several
H.
relieved
I.
look after
J.
anxious
【简答题】肾脏的泌尿功能包括3个相关联的环节,分别是:____、____、____。
相关题目: