风力在（）进行露天焊接或气割时，必须搭设挡风屏以防火星飞溅引起火灾。 A.5级以上

Have you ever seen people building houses? To build a house , you need workers. They use their hands , tools(工具) and machines to put things together. Building the ISS（国际太空站） is the same. The difference is that the workers are astronauts. They walk in space and use robots’ arms and hands to do their work.

In the space station ,astronauts are comfortable. The temperature there is about 21℃.But outside the station , it can be too hot or cold for people. In the sunlight, it’s about 120℃. In the shadow(阴暗处)of the station, it’s about -85℃ . So when astronauts walk in space , they have to wear heavy clothes----spacesuits.

Spacesuits also keep astronauts safe from flying rubbish(垃圾)in space.Each time people go into space , they leave rubbish there. So astronauts should be careful because there’s a lot of rubbish, some rubbish goes many times as fast as a plane !

Space walking is not easy , and it can be dangerous. So getting ready for it takes a lot of time to learn. Astronauts will need to do 160 space walks to finish their work in the ISS. That will take about 1,900man-hour of work.

小题1:What’s the temperature in the space station?

A. 21℃            B120℃             C. -85℃               D.-21℃

小题2:The astronauts work in space with                  

A．scientists’ hands

B．tools in their hands

C．robots’ arms and hands

D．workers’ hands小题3:Which of following is TRUE according to the passage?

A．Space walking is very comfortable

B．Space walking is difficult

C．Astronauts needn’t wear spacesuits when walking in space.

D．Space walking is very safe小题4:What does the underlined word“spacesuit”mean in Chinese?

A．太空服

B．防暴服

C．羽绒服

D．雨衣小题5:Which of following is not TRUE according to the passage?

A．Spacesuits can keep astronauts warm

B．Spacesuits can keep astronauts safe

C．Flying rubbish in space goes very slowly

D．Outside the station ,it can be too cold or hot for people.

工期索赔的分析包括（）。

A．反击或反驳索赔报告

B．延误原因分析

C．延误责任的界定

D．网络计划分析

E．工期索赔的计算

肌无力综合征主要是外周的肌肉无力，多发生于原发性支气管癌患者，下列哪些药物应禁用（）。

A.右旋筒箭毒碱

B.琥珀胆碱

C.罗库溴铵

D.泮库溴铵

E.哌库溴铵

有关安全生产方面最高法律效力的规定是( )。

A．加强劳动保护，改善劳动条件

B．按照安全生产法律法规的规定和要求办事

C．有法可依、执法必严、违法必究

D．加强惩戒，达到教育的目的

框架-剪力墙结构中，主要利用剪力墙来承担大部分的水平向荷载。（）