突发事件预防中的最高目标是指()。
参考答案:回避风险
— Jones! Roy has broken the glass.
— _____ Such things happen. [ ]
A. Doesn't matter.
B. How come?
C. What a pity!
D. What has become of him?
药材原粉片的崩解时限应为()
A.5分钟
B.15分钟
C.30分钟
D.60分钟
E.120分钟