单项选择题
（） is a measurable, verifiable work product such as specification. feasibility study report, detail document, or working prototype
A.milestone
B.deliverable
C.etc
D.BAC
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单项选择题
（） is a measurable, verifiable work product such as specification. feasibility study report, detail document, or working prototype
A.milestone
B.deliverable
C.etc
D.BAC
