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【单选题】
下列属于发电机—变压器单元接线特点的有( )
A.
接线简单清晰,电气设备少,配电装置简单,投资少,占地面积小;
B.
不设发电机电压母线,发电机或变压器低压侧短路时短路电流小;
C.
操作简单,降低故障的可能性,提高可靠性,继电保护简化;
D.
件故障或检修全部停止运行,检修时灵活性差
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举一反三
【简答题】阅读短文,判断对(T)错(F)。 Yesterday was March 18th.  It was Sunday.  My friend Han Meimei was very busy. In  the morning she got up early, and then she helped her mother water the flowers and clean the rooms. ...
【简答题】根据短文内容,选择正确答案。 Last Saturday was October 12th. The weather was windy and cloudy. I was busy. I did my homework on that morning. I didn't feel worry, because the homework was so easy. Then I went shopp...
【单选题】1盎司=( )毫升。
A.
30
B.
50
C.
80
D.
100
【单选题】一瓶1/2盎司(1盎司=29.57毫升)的消毒干燥黏合剂可以涂抹大约()个指甲。
A.
100
B.
200
C.
500
D.
1000
【简答题】阅读理解。 Last Saturday was October 12th. The weather was windy and cloudy. I was busy. I did  my homework on that  morning. I didn't feel worry, because the homework was so easy. Then I went shopping wit...
【单选题】— Hello, you look tired today. —Yes, I slept too late yesterday evening. I  my homework and forgot the time.
A.
was doing
B.
did
C.
have done
D.
had done
【简答题】nslook命令的功能是查询一台机器的()地址和其对应的()。
【单选题】1盎司约是( )毫升。
A.
30
B.
40
【单选题】1盎司约为( )毫升。
A.
15
B.
20
C.
30
D.
40
【单选题】1盎司=(   )毫升
A.
30
B.
50
C.
60
D.
100
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