____, the more expensive the camera, the better its quality.

A．General speaking

B．Speaking general

C．Generally speaking

D．Speaking generally

每逢经行前后或正值经期，出现有规律的吐血或衄血，经净后逐渐停止，其主要病机是

A．阴虚灼肺伤络

B．肝火灼伤血络

C．血热迫血妄行

D．肺肾阴虚火旺

E．血热冲气上逆