单项选择题
A.≥98.0%B.≥100.0%C.≥95.0%D.≥90.0%
A.≤0.15%B.≤0.20%C.≤0.30%D.≤0.40%
A.≤0.85%B.≤0.45%C.≤0.55%D.≤0.65%