外力地质作用的能量来源有哪些（）
A.太阳的幅射能
B.陨石碰撞能
C.旋转能
D.重力能
E.以上全错
参考答案：A, B
___ she couldn’t understand was ___fewer and fewer students showed interest in her lessons.
A．What; why
B．That; what
C．What; because
D．Why; that
镇肝熄风汤中配伍生麦芽的用意是（）
A.消食和中
B.疏肝和胃
C.化滞健脾
D.和胃止泻
E.健脾止泻
