在水溶液中不稳定的药物为
A．硫酸阿托品
B．青霉素
C．肝素
D．硫酸庆大霉素
E．氯霉素
参考答案：B
与眩晕发病无关的脏器是（）
A.肝
B.心
C.脾
D.胆
E.肾
The fact that fun is not equal to happiness may be the opposite of ______ many people actually understand.
A．why
B．that
C．which
D．what
