项目监理机构的总监理工程师代表，应处于()。
A．决策层
B．协调层
C．操作层
D．执行层
参考答案：A
用所给动词的适当形式填空。
1. She's a cabin steward for Air China and she ______ (fly) all over the world.
2. My grandparents always eat Chinese food, they ______ never ______ (have) a west food.
3. How many English words ______ you ______ (learn)?
4. I______ never______ (speak) to a foreigner.
5. —______Tom______ (return) the library book? —Yes, he has.
—When ______he______ (return) it? —Half an hour ago.
被誉为“两弹元勋”的科学家是（）
A．钱学森
B．竺可桢
C．邓稼先
D．袁隆平
