问题
问答题 简答题
低压氮气主要进装置哪几个设备?
答案
参考答案:
预塔底、加压塔底、常压塔底、常压塔回流槽、地下槽。
低压氮气主要进装置哪几个设备?
参考答案:
预塔底、加压塔底、常压塔底、常压塔回流槽、地下槽。
阅读短文,选择正确答案。 |
Bob and Kim go fishing (钓鱼) with a dog. They feel very hot. So they take off (脱下) their coats on a big stone and go to the bank of the river to look for fish. After a while, they want to wear their coats. They tell the dog to go back for them. In fact, it's too hard for him. The dog sees a box under a tree. He puts the two coats into the box. So he can carry the coats at the same time. What a clever dog! |
1. Bob and Kim with a dog. |
A. go swimming |
2. They feel very . |
[ ] |
A. hot B. cold |
3. They tell the to go back for their coats. |
[ ] |
A. dog B. cat |
4. The dog sees under a tree. |
[ ] |
A. a bag B. a box |
5. Where are their coats? |
[ ] |
A. They're on a big stone. B. They're on a tall tree. |
6. Is it a clever dog? |
[ ] |
A. Yes, it is. B. No, it isn't. |