制定工程项目计划主要步骤的先后顺序排列正确的是( )。
①以网络图或横道图等表现形式表示各项任务和工作，并且表明各项任务之间的逻辑关系；
②把工程项目范围详细划分为各个工作包：
③对计划执行风险进行分析，提出对策。

听力原文：M: I'm worried about those classes I missed when I was sick.W: I will try to bring you up today on what we've done.Q: What does the woman mean?(10)A．She will help the man to catch up.B．She is worried about the man's health.C．She will take the man to the hospital.D．She has bought the man a pair of glasses today.

A.
W:
B.
Q:
C.She
D.
B．She
E.
C．She
F.
D．She
G.

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What is learned about the corner of Cherry Street and Tenth Avenue?A．It is near a high school.B．It floods often due to storms.C．It does not have reflective markers.D．It has been the scene of several accidents. 点击查看答案