A.≤0.15/袋 B.≤0.17/袋 C.≤0.18/袋 D.≤0.20/袋 E.≤0.25/袋
A.≤1% B.≤2% C.≤2.5% D.≤3% E.≤5%
A.≥70% B.≥75% C.≥80% D.≥85% E.≥90%