材料消耗定额按用途可分为（）。

A.主要材料（结构件）消耗定

B.材料消耗概（预）算定额

C.材料消耗施工定额

D.材料消耗估算指标

E，周转材料（低值易耗品）消耗定额

Requirements documentation is an input to （）.

A．scope control and scope verification

B．direct and manage project execution and integrated change control

C．develop project management plan and develop project charter

D．develop project management plan and schedule development