主治大头瘟的代表方剂是（）
A.仙方活命饮
B.五味消毒饮
C.普济消毒饮
D.黄连解毒汤
E.凉膈散
参考答案：C
检查各部齿轮的传动情况，啮合间隙及磨损串动情况属于定保检修范围。
My students are all quiet.Even after class, my students spend ___as they can playing outside.
A．as little time
B．little time
C．less time
D．time as little
