滴丸剂系指固体或液体药物与适宜的基质加热熔融后溶解、乳化或混悬于基质中,再滴入不相混溶、互不作用的冷凝液中,由于表面张力的作用使液滴收缩成球状而制成的制剂。
A. 对
B. 错
系统的某一准静态过程可用P - V图上的一条曲线来表示。
A. 对
B. 错
“功,热量和内能都是系统状态的单值函数”,这种说法对吗?
A. 对
B. 错
News reports: Questions 1 to 2 are based on the passages you have just heard.[音频]
A. It is known as owing many Egyptian mummies.
B. It was built 11,000 years ago.
C. The president claimed its close after the fire.
D. Over 20 million items in it may have been destroyed.
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