护士应掌握知识：特殊药物剂量的换算及年龄、身高、体重（）与药物相关性等方面知识。

A.浓度

B.剂量

C.体表面积

D.用法

E.途径

She had just______the shell of the hard-boiled egg and was starting to peel it off.

A. snapped


B. cracked
C. fractured


D. burst