A milestone is a significant () in a proje_爱下问搜题

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问题单项选择题

A milestone is a significant () in a project.

A. activity

B. event

C. phase

D.process

答案

参考答案：B

选择题

Where is Li Ming?

He is __________ the classroom.[ ]

A. in

B. on

C. at

问答题简答题

大安全要体现高可靠是指什么？