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问题 多项选择题

区域防突措施包括开采保护层和预抽煤层瓦斯两类，预抽煤层瓦斯可采用的方式有（）。

A.地面井抽煤层瓦斯

B.井下穿层钻孔

C.顺层钻孔

D.煤层卸压抽采

答案

参考答案：A, B, C, D

填空题

若反比例函数的图象经过点（2，7），则这个函数的解析式为______，该函数的图象在______象限．
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填空题

动词填空：

1. Let's _________ (go) to the Reading Club.

2. We cut some shapes __________ (make) the eyes and the sharp teeth.

3. He enjoys __________ (chat) with his friends after class.

4. Look! The boys ___________ (play) football on the playground.

5. She often goes to school without __________ (have) breakfast.

6. I will finish __________ (read) the book tomorrow.

7. Can you __________ (tell) me about your favourite festival, please?

8. _________ Alice _________ (have) classes on Sunday?

9. Thanks for __________ (tell) me about Halloween.

10. Do you want __________ (go) with us?

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