易发生水解反应
A．肾上腺素B．维生素CC．青霉素G钾盐D．易发生氧化反应E．硝普钠
参考答案：C
Eagle Father was so__________ with his son that he kept the four-year-old son running in the snow without clothes.
A．pleased
B．sorry
C．careful
D．strict
枸橼酸芬太尼含有（）.
A．吗啡喃结构
B．苯吗喃结构
C．哌啶结构
D．氨基酮结构
E．环己基胺结构
