在软件开发过程中进行风险分析时， （19） 活动的目的是辅助项目组建立处理风险的策略，有效的策略应考虑风险避免、风险监控、风险管理及意外事件计划。

A．风险识别

B．风险预测

C． 风险评估

D．风险控制

用适当介词填空。

1. If you work harder _____ now on, I think you will do better in the coming exam.

2. We sat around listening _____  music when my mother came in the room.

3. Look _____ the boy. He is dressed _____  a red T-shirt. How cool!

4. Miss Lin is very popular _____ teachers and students.

5. Go _____ this street, turn left _____ the second turning, and you'll find the park is front of you.

6. You shouldn't believe everything you read _____ the newspapers.

7. I'll tell you all _____ it when I get back.

8. You look tired. You'd better be out to play instead _____ working.

9. I usually walk to school, but _____ bus when it rains.

10. Teenagers should keep away _____ net bars.