安全评价是安全管理的基础和依据，是一项十分复杂的（）工作。 A.管理性 B.技术性

阅读理解。

     Americans with small families own a small car or a large one. If both parents are working, they usually

have two cars. When the family is large, one of the cars is sold and they will buy a van (住房汽车).

     A small car can hold four persons and a large car can hold six persons but it is very crowded. A van

hold seven persons easily, so in a family three children could ask their grandparents to go on a holiday

travel. They could all travel together.

     Mr. Hagen and his wife had a third child last year. This made them sell a second car and buy a van.

The sixth and seventh seat are used to put other things, for a family of five must carry many suitcases

(衣箱) when they travel. When they arrive at their grandparents' home, the suitcases are brought into the

two seats can then carry the grandparents.

     Americans call vans motor homes. A motor home is always used for holidays. When a family are

traveling to the mountains or to the seaside, they can live in their motor home for a few days or weeks.

All the members of a big family can enjoy a happier life when they are traveling together. That is why

motor homes have become very popular. In America there are many parks for motor homes.

1. From the passage, a van is also called _____. 　　 [     ]

A. a motor car 　　

B. a motor home 　　

C. a motor bike 　　　

D. a big truck 

2. Before Mr. Hagen and his wife bought a van, they _____. 　　 [ ]

A. sold their old house 　　　　　　　　

B. moved to their grandparents' house 　　

C. built a new place for a van 　　　　　

D. sold their second car

3. A motor home is usually owned by a family with _____. 　　[ ]

A. a baby 　　

B. much money 　　

C. more than two children 　　

D. interest in vans

4. Americans usually use motor homes _____. [ ]

A. to travel with all the family members for holidays

B. to do some shopping with all the family members

C. to visit their grandparents at weekends

D. to drive their children to school every day

5. Motor homes have become popular because _____.　　 [ ]

A. they can take people to another city when people are free

B. they can let families have a happier life when they go out for their holidays

C. some people think motor homes are cheap 　

D. big families can put more things in motor homes

《中华人民共和国劳动合同法》于2008年1月1日实施。在中 * * 党高度重视下，《劳动合同法》的制定历时两年，共收到各方面提出的意见191849件，经全国人大常委会4次审议，充分反映了国情民意，符合宪法的基本原则。这部法律合理地规范了劳动关系。是民主立法、科学立法的又一典范，为构建与发展和谐稳定的劳动关系、保障劳动者的合法权益提供了有力的法律保障，必将对我国经济社会生活产生深远影响。

结合所学知识回答：《劳动合同法》的制定是如何体现社会主义政治文明建设的?

中间包涂料中MgO含量越高，对使用性能（）

A.抗渣性强

B.没有影响

C.影响体积稳定性

D.抗渣性差

下列哪项损伤可出现下肢痉挛性瘫痪

A．腰多根神经干损伤

B．马尾神经损伤

C．脊髓圆椎损伤

D．胸段脊髓损伤

E．腰椎间孔区神经根损伤

矿山事故灾难造成或可能造成30人以上死亡，或造成100人以上中毒、重伤，或造成1亿元以上直接经济损失，或特别重大社会影响时，应启动（）级响应。

A、Ⅰ

B、Ⅱ

C、Ⅲ

D、Ⅳ