差压流量计测得的差压是（）而测得的流速是（）。 A.静压差；管截面平均流速 B.动压

阅读理解。

     Lin Tao has a good friend.His name is Jim Smith.He is eleven.They are at the same age.Jim's father and mother work

in China.Jim likes Chinese food very much.Lin Tao often asks him to come to his home and have Chinese food with his

family.?

     Jim is good at English.And Lin Tao is good at Chinese.Jim can help Lin Tao with his English.And Lin Tao can help

Jim to learn Chinese.They can help each other.?

1.Lin Tao is        friend.?

A.Mrs Green's

B.Jim's

C.Jack's

D.Li Bing's

2.Jim's parents work in       .?

A.America

B.Japan

C.China

D.England

3.Jim and Lin Tao are        .?

A.in the same city

B.at the same age

C.at the same school

D.in the same shop

4.Jim is good at        .?

A.Chinese

B.English

C.French

D.Japanese

5.       often asks Jim to come to his home and have Chinese food.?

A.Mr Green

B.Mrs Green

C.Jim's uncle

D.Lin Tao

下列建设单位权力可以由监理机构代为执行的是______。

A．接受或拒绝承包单位报价

B．确定分包单位

C．追加合同款项

D．对工程进行质量否决

某旅行社组织本市教师50人到某景区旅游，两位游客在景点玩秋千时，秋千整体翻落，当场被砸伤，事后，导游继续让受伤游客随团游览其他景点，使病情加重，对于此事，说法正确的是（）。

A.景点侵犯了游客的生命健康权

B.游客没有作出正确及时的警示

C.导游应及时检查游客身体，妥善照顾好游客

D.旅行社应赔偿游客医疗费用

公交线路的开辟、延伸和变更（包括站点的设置和变更）以及公交线路的（）的执行标准，须经公司批准后方可实施。

A.首末车时间

B.运行时间

C.票价

D.里程

（）用来表明沥青的抗变形能力。

A、塑性

B、针入度

C、软化点

D、溶解度