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试题内容

What does a CPI of 80% mean?  (  ) . 
A. As of now we expect the total pr gject cost of 80% more  than planned
B.When the project is completed, we will have spent 80% more
C. Your project is only progressing at 80% of that planned   
D. Your project is only getting 80 cents out of every RMB invested
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