中断供电会造成（）属一级负荷。A.重大的政治影响 B.产品大量减产 C.重大经济损失

对年老体弱的患者，直肠肛管检查时最好采用（）

A.膝胸卧位

B.截石位

C.左侧卧位

D.蹲位

E.折刀位

直肠脱整复后的外固定方法是在肛门周围行（）

A.荷包缝合

B.结节缝合

C.伦勃特缝合

D.库兴氏缝合

E.连续锁边缝合

在液压系统中,常用的流量控制阀是节流阀,调速度等。

月经的第1～4天，称为( )。

A．月经期
B．增生期
C．分泌期
D．月经前期
E．月经周期

单句改错。

1. They had to return from the hiking in the desert, for their food almost ran out of.

2. We are totally opposed to make any changes in the plan.

3. You are absolute right. It is our responsibility to stop all illegal activities.

4. Nobody knew how the traffic accident came out the day before yesterday.

5. What would have happened if Bob walked farther, as far as the river bank?

6. English speakers also enjoy Tang poems from China for particular.

7. Do not to be disappoint if you have to try several times before you stop smoking.

8. Comparing with most of the women at that time, she was lucky.

9. Large quantities of energy from the sun is being taken with modern equipment.

10. China has five years of steadily economic growth.