Close procurements is similar to close project in that they both involve:

A) Product verification.
B) Kick off meetings.
C) Quality assurance activities.
D) Creation of the scope verification plan.

可造成化学法粪便隐血试验假阴性的物质是

A．动物肉类

B．动物血

C．含大量过氧化物酶食物

D．大量生食蔬菜

E．大量维生素C