A.60±5 B.80±5 C.90±5 D.105±5
A.<0.01% B.≤0.01% C.<0.1% D.≤0.1%
A.≥0.8,≥0.8 B.≥0.75,≥0.8 C.≥0.8,≥0.75 D.≥0.75,≥0.75