问题
名词解释
爬电比距λ
答案
参考答案：
指外绝缘“相—地”之间的爬电距离（cm）与系统最高工作（线）电压（kv，有效值）之比
搜题请搜索小程序“爱下问搜题”
爬电比距λ
参考答案：
指外绝缘“相—地”之间的爬电距离（cm）与系统最高工作（线）电压（kv，有效值）之比
| 完形填空。 | |||
| I love music.Young people today may not know Zhu Mingying. But I know she was very famous more than twenty years _ 1 . She was a dancer at first. But one day she thought that she could also sig 2 . So she went to visit a music teacher. The teacher 3 her to sing a few songs and then said that she would not be successful in singing, 4 she didn't have a good voice. 5 Zhu Mingying didn't give up. She spent a lot of time _ 6 _ to music lessons. She had 7 time to rest. She didn't have much money to by 8 delicious food.Life was really hard for her at that time,But she didn't complain about anything. Insted, she felt happy because she proved that she could be a good singer at last 9 she practiced singing for many years. If you want to do something, just_10__. You'll be successful in the end! | |||
| ( )1. A.ago ( )2. A. good ( )3. A. asking ( )4. A. so ( )5. A. And ( )6. A. going ( )7. A. a little ( )8. A. herself ( )9. A. before ( )10. A. have music lessons | B. before B. better B. asks B. but B. So B. to go B. few B. hers B. after B. try your best | C. later C .best C. asked C. because C. But C. went C. a few C. him C. and C. find a teacher | D. after D. well D. to ask D. why D. When D. gone D. little D. the teacher D. so D. spend little money |