Li Ming is _____, He would like some rice. [ ]
A. hungry
B. thirsty
C. tired
答案:A
可移植性
利用草酸盐溶解度差异而分离的是()
A.小檗碱和小檗胺
B.麻黄碱和伪麻黄碱
C.苦参碱和氧化苦参碱
D.莨菪碱和东莨菪碱
E.吗啡和可待因