女患者，23岁，每于经期第一天小腹胀痛，拒按， * * 胀痛，经行不畅，色紫黯，有血块，血块排出后腹痛减轻，舌紫黯，脉弦。中医辨证为（）

A.湿热下注

B.寒湿凝滞

C.阳虚内寒

D.肝肾亏损

E.气滞血瘀

A person who sees someone fall overboard should（）.

A.call for help and keep the individual in sight

B.run to the radio room to send an emergency message

C.immediately jump in the water to assist the individual

D.go to the bridge to report the captain