问题
多项选择题
安全接地主要包括（）
A、保护接地
B、防雷接地
C、工作接地
D、防静电接地
E、屏蔽接地
答案
参考答案：A, B, D, E
搜题请搜索小程序“爱下问搜题”
安全接地主要包括（）
A、保护接地
B、防雷接地
C、工作接地
D、防静电接地
E、屏蔽接地
参考答案：A, B, D, E
| 完形填空 | |||
| It was Sunday yesterday. Steve ___1___ a relaxing week-end. __2__ Sunday morning, he played computer games with his friends at home. It ___3___ pretty good. In the afternoon, he ___4___ with his mother. They bought many kinds of food and vegetables. It was really relaxing and exciting. In the evening, he ___5___ a talk show with his parents and listened to some songs by a ___6___ singer. ___7___ Ann had a busy weekend. She ___8___ stopped working. On Sunday morning, she cleaned her bedroom and did her homework In the afternoon, she went to visit her uncle and ___9___ him do some farm work. In the evening, she cooked dinner for her parents. After dinner, she washed all the dishes. Then she went out ___10__ a walk with her dog. What about your weekend? | |||
( )1. A. has | B. have B. At B. is B. went shopping B. watches B. medium B. Because B. always B. liked B. for | C. had C. For C. was C. went to shopping C. looked C. popular C. Or C. usually C. asked C. from | D. was D. On D. were D. went shops D. see D. long D. So D. never D. told D. on |