制何首乌主要用于（）
A.平抑肝阳
B.润肠通便
C.养血调经
D.补益精血
参考答案：D
根据《出入境检验检疫机构实施检验检疫的进出境商品目录》，需实施出口食品卫生监督检验的商品，其商品编码对应的“检验检疫类别”应包含代码( )。
A．M B．Q C．R D．S
How did it ______ that the plane had run out of fuel half way? [ ]
A. come about
B. come across
C. come over
D. come out
