一般5000～10000m2的建筑物施工用水主管径为50mm，支管径为（）mm。A．

下列关于企业业绩衡量不同观点的叙述正确的有( )。

A．股东观认为，应该把股东回报率作为企业业绩的指标

B．股东观认为，应当采用基于会计的方法衡量业绩

C．利益相关者观认为，企业是为所有利益相关者的利益而存在的

D．利益相关者观认为，应当采用基于市场的方法衡量业绩

根据括号中的汉语、首字母或音标写出单词，使句子意思完整正确。(每空限填一词)

1. When I saw the model pyramids and the model Golden Gate Bridge, I couldn't _____ my eyes. (相信)

2. Sandy wants to become a _____ (著名的) singer and travel around the world.

3. American people like calling "film" _____ (电影).

4. There was a lot of _____ (车辆) on the city road. We'd better take the underground.

5. I decided to stay home and pack my bags i_____ (代替).

6. There is _____ (什么也没有) in the fridge. It's empty.

7. It's such an easy book. _____ (甚至) a child can understand it.

8. I was playing computer games the _____ (整个的) afternoon yesterday.

Rebuilding houses in Yushu needs ________ money. [ ]

A. a large number of  

B. a large amount of

C. a great many  

D. a great deal

心动周期中冠状动脉血流量急剧减少是在

A．心室等容收缩期
B．心室等容舒张期
C．心室舒张期的后期
D．心室舒张期的早期

足厥阴肝经与足太阴脾经循行交叉，变换前中位置，是在（）

A.外踝上8寸处

B.内踝上2寸处

C.内踝上3寸处

D.内踝上5寸处

E.内踝上8寸处