下列各项，不属沉降药物作用的是（）
A.清热泻火
B.收敛固涩
C.平肝潜阳
D.开窍
E.镇惊安神
参考答案：D
Nobody but me ______ that either you or Tom ______to take part in this activity.
A．knows / is
B．know / are
C．know / is
D．knows / are
亚洲中部的锡尔河和阿姆河注入_________。
