借助于手动泵的压力将药液喷成雾状的制剂是（）
A.溶液型气雾剂
B.乳状液型气雾剂
C.喷雾剂
D.混悬液型气雾剂
E.吸入粉雾剂
参考答案：C
The government doesn’t know how to deal with the dangerous situation________all the public are aware of at present.
A．where
B．which
C．when
D．who
采用个别托盘印模，托盘与牙弓表面应该有多大的间隙（）。
A.1mm
B.2～3mm
C.4～5mm
D.6mm
E.7mm
