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问题 填空题

由于历史原因，北美地区通用______语言，拉丁美洲通用______语言．

答案

由于历史原因，北美地区通用英语语言，拉丁美洲通用西班牙语语言，故答案为：英语；西班牙语．

填空题

国有经济的主导作用主要通过（）来实现的。
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单项选择题

Rebaselining may be required in cost control when （）.

A．CVs are severe, and a realistic measure of performance is needed

B．revised cost estimates are prepared and distributed to stakeholders

C．corrective action must be taken to bring expected future performance in line with the project plan

D．EAC shows that additional funds are needed to complete the project even if a scope change is not needed
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