乙炔瓶体表面温度不能起过()℃。
A、30--40
B、20—30
C、50--60
D、60-70
参考答案:A
Which of the following are true about intercultural communication
A.Intercultural communication originated in France.
B.Intercultural communication only deals with verbal interaction.
C.Intercultural communication is a branch of communication.
D.Intercultural communication involves people from different cultural backgrounds.
关于外用膏剂叙述错误的是()
A.软膏剂多用于慢性皮肤病,对皮肤起保护、润滑作用
B.软膏药中的药物通过透皮吸收,也可产生全身治疗作用
C.黑膏药可起保护、封闭和拔毒生肌作用
D.黑膏药只能起局部治疗作用
E.橡胶膏剂不经预热可直接贴于皮肤,但药效维持时间短