患者，女，19岁，未婚。经来先期，量少，色红，质稠；手足心热，咽干口燥；舌质红，苔少，脉细数。治疗应首选（）

A.清经散

B.丹栀逍遥散

C.两地汤

D.固阴煎

E.归肾丸

(71) is the sending and receiving of the messages by computer. It is a fast, low-cost way of communicating worldwidE.