CPM技术叫做( )法，是时间管理中很实用的一种方法，为每个最小任务单位计算工期、定义最早开始和结束日期、最迟开始和结束日期、按照活动的关系形成顺序的网络逻辑图，找出关键路径。

A．日程安排
B．计划评审
C．关键路径
D．因果图

Directions.

A. Study the following picture carefully and write an essay in no less than 160-200 words.

B. Your essay must be written clearly on ANSWER SHEET 2.

C. Your essay should meet the requirements below:

1) Interpret the following picture,

2) analyze possible reasons for this situation, and

3) suggest counter-measures.