______for the timely investment from the public, our company would not be so booming now.

A．Had it not been

B．were it not

C．If it was not

D．Be it not

关于冲脉，下列哪项是错误的：（）

A.是人体妊养之本

B.冲为血海

C.为十二经之海

D.冲脉隶于阳明

E.起于小腹内