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问题 单项选择题

Which measure should NOT be taken to reduce the pounding of a vessel in a head sea?（）

A.Add ballast in the afterpeak

B.Add ballast forward

C.Alter course

D.Reduce speed

答案

参考答案：A

填空题

用所给单词的正确形式填空。

1. These _______ (be) pencils.

2. Is it _______ (she) marker?

3. Our classroom ________ (have) two doors.

4. It's a  ________ (wind) day today.

5. The girl is the ________ (one).

6. I ________ (work) hard at school.

7. Jack is ________ (write) on the paper.

8. What ________ (be) they?

9. The ________ (leaf) on the trees are yellow.

10. The wind is ________ (blow) the tree's leaves.
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单项选择题

引起人类散发性细菌性肠炎的常见致病菌是（）

A.胎儿弯曲菌

B.产气荚膜梭菌

C.幽门螺杆菌

D.空肠弯曲菌

E.肉毒梭菌
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