A.0.1~1g B.0.01~0.1g C.0.1~10mg D0.001~0.01mg
A.10~100ml B.1~10ml C.0.01~1ml D.0.001~0.01ml
A.0.1-1g B.0.01-0.1g C.0.1-10mg D.0.001-0.1mg