补阴药中具有清心功效的药物有
A．沙参
B．百合
C．麦冬
D．天冬
E．石斛
参考答案：B,C
出境快件在其运输工具离境8小时前，运营人向离境口岸检验检疫机构办理报检手续。( )
One and a half hour（）since we arrive. No one has come to meet us.
A.have passed
B.was passed
C.pass
D.has passed
