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Task3: Choose the best answer and complete the passage ( 选择最恰当的选项完成短文 ) ( 词数: 247) After giving a talk at a high school, I was asked to visit a(n) 5 student. An illness kept the boy home, but he was interested in seeing me, and it would mean a lot to him. During the nine-mile drive to his home, I knew something about Matthew. He had muscular dystrophy. When he was born, the doctor told his parents that he would not live to five years old. And then the doctor told them again he would not live to ten. Now he is thirteen. He wanted to meet me because I won gold medals, and I knew about how to face 6 and go for my dreams. I spent over an hour 7 Matthew. Never once did he complain or ask “Why me!”. He talked about winning and succeeding and going for his 8 . He didn’t say that his classmates made fun of him because he was disabled. He just talked about his hopes for the future. When we finished talking, I went to my bag and took out the first gold medal I won and put it around his neck. I told him he would be a winner in life. He looked at it for a moment, then 9 it off and handed it back to me. He said, “You got the medal. Someday when I get to the Olympics and win my own 10 , I will show it to you.” ( )5. A. special B. strange C. important D. wrong
A.
special
B.
strange
C.
important
D.
wrong
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【简答题】BCP为何用5000V摇表测量电机绝缘?
【单选题】更换和安装火花间隙须用()摇表检查绝缘电阻。
A.
500V
B.
1000V
C.
2500V
D.
5000V
【判断题】M型介质试验器往被试品上施加的交流试验电压为5000V。( )
A.
正确
B.
错误
【判断题】数字信号不能直接输入微机,必须由A/D转换器将其转换成模拟信号再输入微机。( )
A.
正确
B.
错误
【判断题】测量电力变压器绕组的绝缘电阻应使用2500V或5000V绝缘电阻表进行测量。( )
A.
正确
B.
错误
【判断题】测试新瓷绝缘子的绝缘电阻时,应选用不低于5000V的兆欧表。
A.
正确
B.
错误
【判断题】测量互感器二次绕组的绝缘电阻时,应使用5000V兆欧表。( )
A.
正确
B.
错误
【判断题】焊工防护鞋的橡胶鞋底应经耐压5000V的耐压试验,合格后方能使用。
A.
正确
B.
错误
【判断题】35kV以上的氧化锌避雷器测量绝缘电阻时应选用5000V兆欧表。( )
A.
正确
B.
错误
【单选题】KP500-15型号的晶闸管表示额定电压为()。
A.
150V
B.
1500V
C.
500V
D.
5000V
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