Work hard when you are in class.              , you will catch up with your classmates quickly.

A、On the way               B、In this way          C、By the way

气虚发热的病机为

A．肾阳亏虚，火不归元，虚阳外浮

B．阴虚阳盛，水不制火

C．阴血不足，阳气亢旺

D．中气不足，阴火内生

E．湿邪内生，郁而发热