Z40H—1.6C法兰明扩楔式弹性闸板阀，阀座密封面式衬里材料为（）公称压力为1.6

阅读理解。

     There is nothing more important than the sun. Without the sun all living things(生物) on the earth will die.

     The sun is a star. In the sky there are thousands of stars like the sun. They are as large as the sun and as

hot as the sun. At night you can see many stars, but in the daytime you can see only one star, the sun.

     The sun is much nearer to us than any other star. That is why it looks the biggest and the brightest of all

the stars. The distance of the sun from the earth is as much as 150 million kilometers. Most of the stars are

thousands of light years away from the earth.

     Do you know the light year? Nothing in the world travels faster than the light. It travels 300,000 kilometres

a second (one-sixtieth of a minute). And one light year is the distance that light travels in one year.

1. Without the sun, ___.

A. some living things will live on the earth

B. people can not live on the earth

C. only some plants can live on the earth

D. there will be no stars in the sky

2. In the daytime you can only see the sun because _____.

A. other stars are too far away

B. there are no other stars in the sky

C. the sun is the biggest in the sky

D. the other stars only come out at night

3. Why does the sun look the biggest and the brightest of all the stars?

A. The sun is far away from the earth.

B. The sun is the nearest star to the earth.

C. The sun is 150 kilometres away from the earth.

D. The sun is much bigger and brighter than other stars.

4. Light travels _____.

A. 300,000,000 kilometres a minute

B. 300,000 metres a second

C. 300,000,000 metres a second

D. 3000,000 kilometres a minute

5. "Light year" in this passage means _____.

A. light

B. year

C. a far-away place

D. a very, very long way

经皮吸收制剂中药物适宜的分子量为（）

A.小于500

B.小于1000

C.2000～6000

D.大于1000

餐前服用。可以促进胃排空的药品是（）

A.复方铝酸铋片

B.二甲双胍片

C.甲氧氯普胺片

D.瑞舒伐他汀片

E.维生素C

(1)（2分）在杠杆上的A点挂一重物。在C点对杠杆施加一个最小的力，使杠杆平衡在图中所示的位置，试画出这个力的示意图和力臂．

（2）（2分）用滑轮组提升重1000N的物体A，如果每个滑轮垂100N，绳子能承受的最大拉力为500N．请在图中画出绕绳方法．

下列属于银行“随薪贷”业务客户群体的包括（）。

A.国家机关或财政统发工资的事业单位的副处级（含）以上管理人员

B.银行AAA级及以上事业法人客户分部的副处级（含）以上管理人员

C.国有商业银行、政策性银行、全国性股份制商业银行的二级支行正科级（含）以上管理人员

D.地市级及以上重点中小学高级教师