--- I’ve studied watching birds as one of my interests. Could I make some suggestions?

---_________ .

A．You will make it

B．It doesn’t matter

C．Go right ahead

D．Take it easy

在发现制造过程良品的原因与其他要素之间的关系时可选用的工具是( )。

A．矩阵图
B．网络图
C．排列图
D．流程图