问题
填空题
在电力系统的运行过程中，产生危及电气设备绝缘的电压升高，称为过电压。按其产生的来源可分为操作过电压和（）。
答案
参考答案：大气过电压
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在电力系统的运行过程中，产生危及电气设备绝缘的电压升高，称为过电压。按其产生的来源可分为操作过电压和（）。
参考答案：大气过电压
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| I didn't cry when I learned I was the parent of a mentally handicapped (弱智的) child. "Go ahead and cry," the doctor 1 kindly. But I couldn't cry then nor during the months that followed. We sent her to a kindergarten in our neighborhood at age seven. I worried that she was the “ 2 " child among twenty five-year-olds. 3 , positive things began to happen to Kristi in her school,and to her schoolmates, too. When talking big of their own accomplishments, Kristi's classmates always took 4 to praise her as well, "Kristi got all her spelling words right today." No one would say that her spelling list was easier than anyone else's. During Kristi's second year in school,she 5 a very special challenge. The big public event of the term was a 6 based on the final outcome of the year's music and physical education activities. Kristi was 7 in both. My husband and I felt 8 about the day as well. On the day of the program,Kristi 9 to be sick. Desperately I wanted to keep her home. Why let Kristi fail in a gymnasium 10 with parents,students and teachers? What a simple 11 ! But I finally got her onto the school bus. Just as I had forced my daughter to go to school, now I forced myself to go, too. Then I knew Kristi's 12 . Her class was divided into relay teams. With her slow and clumsy reactions, she would surely 13 her team. But as Kristi's turn to 14 neared, a change took place in her team. The tallest boy in the line stepped 15 Kristi and placed his hands on her waist. Two other boys stood a little ahead of her. The 16 the player in front of Kristi stepped from the sack(bag), the two boys seized it and held it open while the tall boy 17 Kristi and dropped her neatly into the sack. A girl ahead took her hand and supported her until she gained her 18 .Then off Kristi hopped (跳跃), smiling and proud. At the cheers of the crowd, I slipped out to thank Heaven for the warm and considerate people making it possible for my 19 daughter to be like her fellow human beings. Then I finally 20 . | ||||
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