单项选择题
A.16.94% B.15.94% C.14.94% D.13.94%
A.6% B.6.25% C.6.5% D.6.75%
A.0.487% B.0.497% C.0.507% D.0.517%
A.1.12% B.1.25% C.1.38% D.1.47%
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