概述
- 1. A manufacturing project has a schedule performance index (SPI) of 0.89 and a cost performance index (CPI) of 0.91. Generally, what is the BEST explanation for why this occurred?
A. The scope was changed.
B. A supplier went out of business and a new one needed to be found.
C. Additional equipment needed to be purchased.
D. A critical path activity took longer and needed more labor hours to complete.
某个制造项目的进度绩效指数（SPI）是0.89；成本绩效指数（CPI）是0.91。一般而言，这种情况的出现最好的解释是？
A.范围变更
B.供应商歇业，需要找
最后
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