（ ）通过考虑估算中的不确定性与风险，使用三种估算值来界定活动期望完成工期的近似区间，可以提高活动成本估算的准确性。
- A.类比估算
- B.三点估算
- C.参数估算
- D.专家判断
正确答案及解析
正确答案
B
解析
三点估算通过考虑估算中的不确定性与风险，使用三种估算值来界定活动期望完成工期的近似区间，可以提高活动成本估算的准确性。
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