（）is a category assigned to products or services having the samefunctional use but different technical characteristics. Itisnotsameasquality.<br>A:Problem<br>B:Grade<br>C:Risk<br>D:Defect

（）is a category assigned to products or services having the samefunctional use but different technical characteristics. Itisnotsameasquality.
A:Problem
B:Grade
C:Risk
D:Defect

出自：信息系统项目管理师（高级）

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