At Cannes Film Festival, we noticed Fan Bingbing _____ a beautiful evening dress of imperial robe as she entered the hall.[ ]

A. dressed

B. dressing

C. wearing

D. worn

下列说法不适用于提净法的是（）

A．使药物纯净

B．适宜于矿物药

C．可缓和药性，降低毒性

D．只能用水，不可加其它辅料

E．需经过溶解、过滤、重结晶处理