(1).气雾中作抛射剂（）
(2).气雾剂中作稳定剂（）
(3).片剂中作润滑剂（）
(4).栓剂中作基质（）

A．氟利昂 

B．可可豆脂 

C．司盘85 

D．硬脂酸镁

Most of us know we should cut down on fat, but knowing such things isn’t much help when it shopping and eating.

A．refers to

B．speaks of

C．focuses on

D．comes to