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【多选题】
能造成线路突然来电的原因有（）。
A.
交叉跨越处另一条带电线路发生断线而造成搭连
B.
由于拉开刀闸后，定位插牢，又未加锁， 在震动或其它外力情况下，刀闸因重力而自行闭合
C.
由于值班人员（其中包括用户或外人）误操作引起对停电线路的误送电
D.
用户自备发电机误向系统倒送电
E.
双电源用户当第一电源因线路工作停电， 合上第二电源时由于闭锁装置失灵或误操作，向停电的线路反送电
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参考答案：
举一反三
【简答题】One day, Alice found(找到) a book in the studay.It was about clowns(小丑). She loved the story and she told her mom all about it. "Mom, I want to be a clown now."Alice said. "Well, let's make a clown." Mo...
查看完整题目与答案
【单选题】• In th e f ol l o w i n g s e lect i o n , C o l e r i d g e i s commentin g upon Fi e ld i n g ' s a b ili t y a s a . ( 大 连外国语 2008 研 ) Oedi p u s T y rannu s, The Alc hem is, and Tom J on es are t...
A.
• reali s t
B.
• morali s t
C.
• ma s ter of characterization
D.
• ma s ter of compo s ition
查看完整题目与答案
【单选题】A 35-year-old man has had epigastric pain for more than I year. The pain tends to occur 2 to 3 hours after a meal and is relieved if he takes antacids or eats more food. He has noticed a 4-kg weight g...
A.
Carcinoid syndrome
B.
Fat malabsorption
C.
Hematemesis
D.
Migratory thrombophlebitis
E.
Vitamin B12 deficiency
查看完整题目与答案
【判断题】负载转矩的大小不随转速变化的负载为恒转矩负载 。
A.
正确
B.
错误
查看完整题目与答案
【单选题】听力原文：This is going to be a brief meeting. You are all aware of the damage caused by last week's hurricane. Many buildings in this area have been seriously damaged. Our premises have also been declared...
A.
To announce expansion plans.
B.
To inform. customers of attractive offers.
C.
To launch a new pension scheme.
D.
To announce a new location for the office.
查看完整题目与答案
【单选题】关于位能型恒转矩负载,下列描述正确的是
A.
负载转矩的大小随转速变化而变化
B.
负载转矩方向不随转速方向变化而变化
C.
典型机械代表为提升机行走机构
D.
负载转矩方向与运动方向有关
查看完整题目与答案
【多选题】函数 在 上连续,在 内可导, ,则至少存在一点 ,使( )必然成立。
A.
B.
C.
查看完整题目与答案
【简答题】Lesson 3 Listening Comprehension Blank-filling Passage One On January fifth, US Airways flight fif forty-nine was leaving La Guardia airport near New York City. Everything seemed normal and t...
查看完整题目与答案
【单选题】采用小波变换对图像数据进行压缩,其压缩比为 。
A.
2 ～4:1
B.
40:1
C.
10～100:1
D.
10000:1
查看完整题目与答案
【判断题】如函数 , 满足在 上连续,在 内可导,则至少存在一点 ,使得
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【简答题】One day, Alice found(找到) a book in the studay.It was about clowns(小丑). She loved the story and she told her mom all about it. "Mom, I want to be a clown now."Alice said. "Well, let's make a clown." Mo...
查看完整题目与答案
【单选题】• In th e f ol l o w i n g s e lect i o n , C o l e r i d g e i s commentin g upon Fi e ld i n g ' s a b ili t y a s a . ( 大 连外国语 2008 研 ) Oedi p u s T y rannu s, The Alc hem is, and Tom J on es are t...
A.
• reali s t
B.
• morali s t
C.
• ma s ter of characterization
D.
• ma s ter of compo s ition
查看完整题目与答案
【单选题】A 35-year-old man has had epigastric pain for more than I year. The pain tends to occur 2 to 3 hours after a meal and is relieved if he takes antacids or eats more food. He has noticed a 4-kg weight g...
A.
Carcinoid syndrome
B.
Fat malabsorption
C.
Hematemesis
D.
Migratory thrombophlebitis
E.
Vitamin B12 deficiency
查看完整题目与答案
【判断题】负载转矩的大小不随转速变化的负载为恒转矩负载 。
A.
正确
B.
错误
查看完整题目与答案
【单选题】听力原文：This is going to be a brief meeting. You are all aware of the damage caused by last week's hurricane. Many buildings in this area have been seriously damaged. Our premises have also been declared...
A.
To announce expansion plans.
B.
To inform. customers of attractive offers.
C.
To launch a new pension scheme.
D.
To announce a new location for the office.
查看完整题目与答案
【单选题】关于位能型恒转矩负载,下列描述正确的是
A.
负载转矩的大小随转速变化而变化
B.
负载转矩方向不随转速方向变化而变化
C.
典型机械代表为提升机行走机构
D.
负载转矩方向与运动方向有关
查看完整题目与答案
【多选题】函数 在 上连续,在 内可导, ,则至少存在一点 ,使( )必然成立。
A.
B.
C.
查看完整题目与答案
【简答题】Lesson 3 Listening Comprehension Blank-filling Passage One On January fifth, US Airways flight fif forty-nine was leaving La Guardia airport near New York City. Everything seemed normal and t...
查看完整题目与答案
【单选题】采用小波变换对图像数据进行压缩,其压缩比为 。
A.
2 ～4:1
B.
40:1
C.
10～100:1
D.
10000:1
查看完整题目与答案
【判断题】如函数 , 满足在 上连续,在 内可导,则至少存在一点 ,使得
A.
正确
B.
错误
查看完整题目与答案
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