在项目目标动态控制中，属于项目目标控制准备工作的是（）。A．收集项目目标的实际值 B

Most parents in China hope his single children will have a happy future, so they are very strict

in their children. So do teachers! Many children are given so much homework that they had

hardly any spare time have sports. The children are forbidden to do nothing but study. No        

wonder so many children are tiring of lessons. I believe many people have already read this kind

of news in newspapers or magazines. Shouldn’t we draw lesson from those events? Now the

government is carrying out of a plan to solve these education problem.

5，48，12，20，15，（）。

A．16

B．17

C．18

D．19

十二指肠球位于( )

A．十二指肠上部
B．十二指肠下部
C．十二指肠升部
D．十二指肠降部
E．十二指肠空肠曲

著名的白兰地产地是（）。

A.法国干邑

B.亚玛涅克

C.巴黎

D.慕尼黑

钢丝绳应严禁出现下面情况（）

A、死弯

B、打结

C、断丝

D、波浪扭曲