油性软膏基质中加入羊毛脂的作用是 ( )
A. 提高软膏中药物的渗透性
B. 防止基质氧化、酸败
C. 增加药物的溶解度
D. 提高药物的稳定性
E. 减少药物的刺激性
Continuous short buzzes on the telephone indicate that the line is busy after you dial the telephone number.
A. open
B. out of order
C. disengaged
D. in use
It is necessary for technicians ______ one or two foreign languages.
A. master
B. to master
C. mastering
D. mastered
油脂性基质栓应在多少分钟内全部融化、软化,或触压时无硬心( )
A. 40
B. 20
C. 30
D. 10
E. 60