嗅辨员选择最佳年龄是（）岁。
A.20～45
B.18～45
C.25～50
D.18～50
参考答案：B
--- Don’t you think Jack’s health has been ruined by over drinking?
---- Yes, he told me____ himself.
A．the thing
B．it
C．so
D．the fact
在我国，审计在经济监督系统中的地位是怎样体现的？
