As part of the quality audit, the scope statement is checked against the work results to ensure the conformance to the customer requirements. The results should be documented and used for ______ .

A) estimating future projects
B) changing the project scope
C) defining future project tasks
D) validating the quality process

配重混凝土的取样应（）进行

A、根据技术规格书要求

B、根据专用方法

C、同常规混凝土

D、以上均可