From the dates        on the gold coin, we know that it was made 500 years ago.

A．marking

B．marked

C．to mark

D．to be marked

患者，王某，27岁，结婚3年，曾流产1次，近2年未孕，月经或提前或后推，腹痛，经前 * * 胀痛，烦躁易怒，精神抑郁，舌质暗红，脉弦。

应辨证为（）

A.血瘀不孕

B.肾阳虚不孕

C.肝气郁结不孕

D.肾阴虚不孕

E.痰湿不孕