一、二级导线测量视线超越障碍物的高度不宜小于()m。
A、0.3
B、0.5
C、1
D、1.5
参考答案:B
用所给词的适当形式填空。
1. ________ (he) favorite food is hot dogs.
2. Would you like ________ (eat) salad?
3. Don't let the boy ________ (draw) pictures on the wall.
4. The man looks very _______ (friend) .
5. One of the _______ (run) wears black shoes.
6. This is the ________ (begin) of your English study.
7. Mary likes ________ (play) chess very much.
8. ________ (not take) the book out of the library, please.
9. What about ________ (go) for a walk with me?
10. He really enjoys ________ (read) very much.
怎样使用摇表测绝缘?