女性，19岁，突然剧烈头痛、呕吐、右眼睑下垂，右眼球活动受限，上、下视不能，瞳孔扩大

男，38岁，3年反复腹泻，脓血便，伴便前腹痛，便后缓解

上述病例最大可能诊断为（）

A.溃疡性结肠炎

B.肠结核

C.结肠癌

D.痢疾

E.肠易激综合征

用所给单词的适当形式填空。

1. You are in poor health and you must give up _____. (smoke)

2. You should do more _____ (exercise). Don't always sit at the desk busy doing your _____. (exercise)

3. We all love Miss Yang. She always makes her history class very_____. (interest)

4. Foreign stamps _____ him. (interest)

5. Her parents wouldn't allow her to marry anyone _____ family was poor.(who)

6. When their car becomes old, they prefer_____ (buy) a new one rather than _____ (repair) it.

7. I prefer _____ (do) exercise to _____ (watch) TV.

8. His mother refused _____ (buy) him a present.

9. He is sure to come. I've_____ (persuade) him to attend our meeting.

10. I tried to persuade him _____ (give) up _____ (smoke), but failed.

下列不属于一切险承保范围内的险别是( )。

A．偷窃提货不着险

B．渗漏险

C．交货不到险

D．包装破裂险

普通线路地段设有伸缩纵梁的连续梁上的Ｋ型分开式扣件轨卡螺栓扣紧轨底处的螺母扭矩范围应为（）。

A、80N.ｍ以上

B、100N.ｍ以上

C、200N.ｍ以下

D、80～120N.ｍ

预测我国进入21世纪，人口增长率可控制在什么水平内（）

A．8‰

B．10‰

C．12‰

D．15‰