治疗冲任虚寒，寒凝血滞闭经、痛经的药物是（）。
A.当归
B.艾叶
C.鹿茸
D.肉桂
E.吴茱萸
参考答案：A, D, E
生活垃圾填埋场应设在人畜居栖点( )以外。
A．300m B．400m C．500m D．600m
More and more people prefer to travel on ______ plane, because you can have a comfortable and quick journey, but make sure you get ______ safe one.
A．the; the
B．a; the
C．the; a
D．/; a
