A.0.08%、0.12%、0.14% B.0.1%、0.14%、0.16% C.0.04%、0.08%、0.10% D.0.02%、0.06%、0.08%
A.3% B.5% C.8% D.10%
A.10%; B.12%; C.16%; D.5%。