单项选择题
A.80.7% B.85.7% C.98.7% D.99.7% E.99.9%
A.80.5% B.85.5% C.88.5% D.90.5% E.95.5%
A.50.5% B.55.2% C.62.8% D.68.2% E.69.2%
A.90.0% B.95.0% C.95.5% D.99.4% E.99.7%
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