反映食物蛋白质消化吸收后被机体利用程度的指标（）

A.生物价

B.蛋白质消化率

C.蛋白质功效比值

D.氨基酸评分

E.蛋白质的含量

A control chart has all of the following characteristics EXCEPT:

A．It illustrates how a process behaves over tim

B．It is used to determine whether or not a process is stable or has predictable performanc

C．It illustrates how various factors might be linked to potential problems or effect

D．It can be used to monitor any type of output variabl