A.≥15%B.≥20%C.≥25%D.≥30%
A.≤2%,3% B.≤1%,≤1% C.≤1%,0.5% D.≤0.5%,≤0.5%
A.≤5%,≤2% B.≤3%,2% C.≤3%,≤1% D.≤2%,1%