药物煅淬后质地疏松，便于粉碎，利于煎出有效成分。
参考答案：对
The lead role in Roman Holiday _____ her an Oscar for Best Actress. [ ]
A. gave
B. earned
C. achieved
D. took
______的法律关系主体都是特定的。
A．债 B．物权 C．财产所有权 D．专利权
