The water level of the river has increased _________ half a meter since it began to rain 7 days ago.

A．on

B．for

C．in

D．by

治疗暑热气津两伤的方剂是（）

A.清暑益气汤

B.香薷散

C.六一散

D.碧玉散

E.竹叶石膏汤