为保证机组安全可靠地运行，可采取如下措施：一是在天然气的供气管路上安装（），力争机组

An astronaut’s work may sound exciting, but living in space isn’t as fun as you think. The website www.space.com lists the disadvantages of living in space. Here are some of them.

When astronauts work outside the station during spacewalks, they have to wear special gloves. The gloves are very tight. They can hurt the astronauts’ fingernails(手指甲) and even make them fall off.

In space, you don’t have many choices in what you eat. It’s hard to get fresh fruits and vegetables. It is not OK to eat bread because it leaves crumbs(碎屑). Crumbs could fly around everywhere.

In space, it is impossible to have a good shower because water can fly all over the ship and break the machines. Astronauts have to use a special water-shooting(喷水) gun and a washcloth.

Astronauts lose their bone strength quickly during their stay in space. So far, there is no way to solve this problem. They do exercise while they’re in space to try to keep their bones strong as long as possible.

Perhaps the hardest part of life in space is the feeling of loneliness. Astronauts sometimes have to spend weeks and even months away from Earth. They miss their friends and families.

小题1:People often think the life in space is       .

A．terrible

B．lonely

C．hard

D．fun小题2:What may hurt astronauts fingernails while working in space?

A．Washcloth.

B．The special gloves.

C．The water-shooting gun.

D．Crumbs.小题3:. How do the astronauts have a good shower in space?

A．By eating bread.

B．By breaking the machines.

C．By using a special water-shooting gun and a washcloth.

D．By wearing gloves.小题4: How do the astronauts keep their bones strong in space?

A．By taking medicine.

B．By doing exercise.

C．By taking a good rest.

D．By walking in space.小题5: What’s the hardest part of life for astronauts in space?

A．They feel very lonely.

B．They have to stay alone in space.

C．They have no friends.

D．They have no families.

行政复议决定不包括（）

A.决定维持

B.被申请人补正

C.限期履行

D.撤销、变更

E.警告、罚款

成年女性耻骨弓的角度平均是：

A．60°～80°

B．70°～80°

C．80°～90°

D．90°～100°

E．100°～110°

在数据库设计中，进行E-R模型向关系模型的转换是______结构设计附段的任务。

党的十三大阐述了“一个中心、两个基本点”的基本路线。“一个中心”指的是（）。

A.以经济建设为中心

B.以阶级斗争为中心

C.以改革开放为中心