A.≤1% B.≤1.5% C.≤2% D.≤2.5%
A.≤2%、≤7% B.≤1%、≤8% C.≤2%、≤8% D.≤1%、≤7%
A.35.3N、44.1N B.34.3N、45.1N C.36.3N、44.1N D.34.3N、44.1N