单项选择题
A.5202.24 B.4813.09 C.7107.25 D.6925.30
A.98.72；0.5；5020.24 B.98.72；1.97；5020.24 C.40；0.5；7107.25 D.40；1.97；7107.25
A.120 B.125 C.110 D.100
A.1；0.08；5250.24 B.1；0.8；5250.24 C.-1；0.08；7107.25 D.-1；0.8；7107.25
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