单项选择题
A.0.95 B.0.97 C.0.98 D.0.99
A.0.9 B.0.95 C.0.99 D.1
A.0.02 B.0.03 C.0.033 D.0.04
A.0.01 B.0.02 C.0.03 D.0.005
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