肾上腺素、丙二醇、无菌蒸馏水的处方属于()
A.吸入型粉雾剂
B.混悬型气雾剂
C.溶液型气雾剂
D.乳剂型气雾剂
E.喷雾剂
参考答案:E
Jim, how nice your car is! How long ________ you _________ it? [ ]
A. did; buy
B. did; have
C. have; had
给水管道常用的绝热层材料有()。
A.玻璃
B.聚氨酯
C.岩棉
D.毛毡