项目管理组织目标和大政方针是项目组织中( )的职能。
A．决策层
B．协调层
C．执行层
D．操作层
参考答案：A
夜间通过没有路灯或路灯照明不良的路口，要连续变换远、近光灯提示。
介词填空。
1. They help to educate the public about caring _____ the animals.
2. I agree _____ you.
3. It's hard _____ stop riding in cars.
4. I have never heard _____ the woman.
5. She makes model toys _____ old TVs.
6. The walls are made _____ old glass bottles.
7. It's polite to take a few flowers _____ a gift.
8. He was late _____ a business meeting.
