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问题 多项选择题

人类社会的物质生活资料的生产即物质生产实践是

A．人类社会的第一个历史活动

B．人类社会存在和发展的基础

C．包含了人与自然的关系

D．整个社会生活、政治生活、精神生活的决定力量

答案

参考答案：A,B,C,D

填空题

如果上升5m记作+5m，那么下降4m记作（    ）。
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单项选择题

You are working on a project for Bright Idea Inc. and working on a project for a large retail bank. You have already prepared the WBS and got it signed off. Because of some new government regulations, you need to add some more activities to the WBS. You have got the change requests approved through the CB. The WBS changes in turn require which of the following ？（）

A．Cost changes

B．Scope changes

C．Schedule revisions

D．Risk response change
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