临床上用20%甘露醇溶液降低颅内压正确的输液方法是（） A.快速静推 B.缓慢静滴，

—Excuse me, I want to ask for your classmate—Wang Hao. Can you take

a message for me?

—________. In fact, I haven’t a classmate called Wang Hao.

A．I think so

B．I’m afraid not

C．I hope so

D．I’d rather not

标准施工合同文件通用条款规定的基准日期指投标截止日前第（）天。

A.14

B.21

C.28

D.56

信箱中开出的信件中，发现有封皮破损时，下列做法不正确的是（）。

A.应会同其他营业员，双人处理

B.应使用“代封纸”代封

C.要在骑缝处加盖日戳

D.应报告主管人员

A firm realizes that it is producing more than the profit maximizing level of output and makes a short-run decision to decrease its output. Which of the firm's cost measures is least likely to decrease as a result（）

A. Average variable cost.

B. Average total cost.

C. Average fixed cost.

司法警察值庭时，时间超过半小时可以替换。