问题
问答题 简答题
挂拆接地线的步骤是怎样的？
答案
参考答案：
挂拆接地线的步骤如下。
（1）挂接地线时，先接接地端，后接导体端，若同杆塔有多层导线均需接地，从下层往向上层依次接地。
（2）拆除接地线的顺序与挂接地线顺序相反。
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挂拆接地线的步骤是怎样的？
参考答案：
挂拆接地线的步骤如下。
（1）挂接地线时，先接接地端，后接导体端，若同杆塔有多层导线均需接地，从下层往向上层依次接地。
（2）拆除接地线的顺序与挂接地线顺序相反。
| 完形填空。 |
| I know a black boy called 1 . His father is a farm worker. He works in a big 2 in the middle of America. Tom's parents work hard for the family day and night, but they get 3 money. So they are 4 . Tom 5 a younger brother, Jack and a younger sister, Susan. The family need Tom's help. On weekends Tom 6 play in the park with other 7 . He has 8 at home to look after his sister, or help his parents 9 their work. Tom is such a twelve-year-old boy. Tom knows China, "How happy the 10 children are!" He often says, "I like this country very much, I will go there one day." |
| ( )1. A. Mary ( )2. A. library ( )3. A. much ( )4. A. rich (富裕) ( )5. A. has ( )6. A. can ( )7. A. children ( )8. A. to study ( )9. A. in ( )10. A. Chinese | B. Tom B. hospital B. many B. poor (贫穷) B. have B. can't B. child B. to play B. on B. Japanese | C. Jack C. school C. a little C. old C. is C. must C. friend C. to work C. with C. American | D. Susan D. farm D. little D. young D. there is D. only D. classmate D. to stay D. for D. English |