眼眦部长有赤膜，其状如昆虫之翼，横贯白睛，攀侵黑睛，甚至遮盖

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问题单项选择题

眼眦部长有赤膜，其状如昆虫之翼，横贯白睛，攀侵黑睛，甚至遮盖瞳神的眼病，其病名是（）。【A型题】

A．漏睛

B．胬肉攀睛

C．天行赤眼

D．花翳白陷

E．混睛障

答案

参考答案：B

填空题

词汇运用

1. I'm sorry I've spoken for too long, but I hope ________(我没有使你们厌烦).

2. Many people in the west like to ________(刺激) themselves with adventures.

3. You're ________(完全正确).

4. There exists a ________(潜在危险的)situation in that area.

5. You'll have to behave better if you really want to ________(给人留下好的印象).

6. It was a ________(缓解) to be able to talk to someone about my grievance(委屈).

7. He ________(非常忧虑) what job he can find after graduation.

8. "What should I do next?" asked the poor man ________(焦急地看着我).

9. It's ________(这个小男孩很有勇气) to make a speech in public.

10. There are ________(各种不同的图案) for you to choose from.

问答题

如图3（a）所示，长为L的轻绳一端系一质量为m的小球，挂于小车支架上的O点，当小车以加速度a向右加速运动时，将小球拉离平衡位置（＜10°）由静止释放，求其周期。