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【单选题】
三相对称负载三角形接于线电压为 380V 的电源上。若 U 相电源线因故断路，则下列说法正确的是(  )。
A.
三相负载均不能正常工作
B.
U、W两相负载只承受线电压的二分之一，不能正常工作，V相正常
C.
U、V两相负载不能正常工作，W相正常
D.
U相负载工作不正常，V、W两相正常
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参考答案：
举一反三
【判断题】分布式操作系统的特点有进程通信、资源管理和系统结构。()
A.
正确
B.
错误
查看完整题目与答案
【单选题】描绘一个刚体，通常最适合定量描述的方法是（ ）。
A.
语言描述
B.
在刚体上固定坐标系，把此坐标系的位姿当作刚体的位姿
C.
几何描述
D.
既描述位置又描述姿态
查看完整题目与答案
【简答题】根据汉语提示完成句子（9分）： 小题1:He ______________(坚持) that she was the perfect girl to play the lead role in the play. 小题2:---- What about going to the concert with me tonight? ---- Sounds good. But I don’t feel ...
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【简答题】第九讲作业:根据本讲第二段视频中第二个对话内容填空(每空一词) Directions:Fill in the following blanks according to Conversation 2 you’ve heard in the second video of Lecture 9. (每空限填一个词) The woman is 1)________ to be starting a ne...
查看完整题目与答案
【单选题】She promised to ________at the meeting but she didn’t __________.
A.
turn up, keep her word
B.
present, keep her promise
C.
attend, turn up
D.
appear, keep her promise
查看完整题目与答案
【简答题】I prefer chemistry to ____________ (物理学). 2. She is studying ____________ (基因学) at college. 3. ____________ (经济学) is beyond my scope. 4. The fish is erous and belongs to ____________ (攻击性的) specie...
查看完整题目与答案
【简答题】根据句意、汉语或首字母提示，补全单词，完成句子。 1. The new play is the h_____ of the season. 2. Mrs. Smith should have a_____ on the stage by 9:00 but until now she has not shown up. 3. Frankly speaking, l have never been i...
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【单选题】对于int n=6789; 以下哪个表达式的值为7 ?
A.
n%10
B.
n/10%10
C.
n/100%10
D.
n/1000%10
查看完整题目与答案
【单选题】对于“int n=6789,表达式的值为7的是（）A. n%10 B. n/10%10 C. n/100%10 D. n/1000%10
A.
A
B.
B
C.
C
D.
D
查看完整题目与答案
【单选题】On March 27th，The Forbidden City also turned off its lights for one hour to raise__________of climate change．
A.
motivation
B.
awareness
C.
association
D.
concept
查看完整题目与答案
相关题目：
【判断题】分布式操作系统的特点有进程通信、资源管理和系统结构。()
A.
正确
B.
错误
查看完整题目与答案
【单选题】描绘一个刚体，通常最适合定量描述的方法是（ ）。
A.
语言描述
B.
在刚体上固定坐标系，把此坐标系的位姿当作刚体的位姿
C.
几何描述
D.
既描述位置又描述姿态
查看完整题目与答案
【简答题】根据汉语提示完成句子（9分）： 小题1:He ______________(坚持) that she was the perfect girl to play the lead role in the play. 小题2:---- What about going to the concert with me tonight? ---- Sounds good. But I don’t feel ...
查看完整题目与答案
【简答题】第九讲作业:根据本讲第二段视频中第二个对话内容填空(每空一词) Directions:Fill in the following blanks according to Conversation 2 you’ve heard in the second video of Lecture 9. (每空限填一个词) The woman is 1)________ to be starting a ne...
查看完整题目与答案
【单选题】She promised to ________at the meeting but she didn’t __________.
A.
turn up, keep her word
B.
present, keep her promise
C.
attend, turn up
D.
appear, keep her promise
查看完整题目与答案
【简答题】I prefer chemistry to ____________ (物理学). 2. She is studying ____________ (基因学) at college. 3. ____________ (经济学) is beyond my scope. 4. The fish is erous and belongs to ____________ (攻击性的) specie...
查看完整题目与答案
【简答题】根据句意、汉语或首字母提示，补全单词，完成句子。 1. The new play is the h_____ of the season. 2. Mrs. Smith should have a_____ on the stage by 9:00 but until now she has not shown up. 3. Frankly speaking, l have never been i...
查看完整题目与答案
【单选题】对于int n=6789; 以下哪个表达式的值为7 ?
A.
n%10
B.
n/10%10
C.
n/100%10
D.
n/1000%10
查看完整题目与答案
【单选题】对于“int n=6789,表达式的值为7的是（）A. n%10 B. n/10%10 C. n/100%10 D. n/1000%10
A.
A
B.
B
C.
C
D.
D
查看完整题目与答案
【单选题】On March 27th，The Forbidden City also turned off its lights for one hour to raise__________of climate change．
A.
motivation
B.
awareness
C.
association
D.
concept
查看完整题目与答案
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