A.10.0g B.5.0g C.3.0g D.2.0g E.1.0g
A.回收率(%)==150.0% B.回收率(%)==125.0% C.回收率(%)==100.0% D.回收率(%)==80.0% E.回收率(%)==60.0%
A.70% B.30% C.15% D.-15% E.-30%