单项选择题
A.4.1986B.5.1234C.6.2563D.5.3695E.4.9988
A.0.41B.0.39C.0.37D.0.35E.0.33
A.0.21B.0.41C.0.61D.0.81E.0.91
A.0.28B.0.33C.0.38D.0.43E.0.48
A.1/4B.2/5C.2/4D.3/5E.3/4
A.0.10B.0.15C.0.20D.0.55E.0.80
A.4.75B.8.75C.13.50D.22.60E.31.35
A.75.043B.75.097C.75.407D.75.642E.75.781
A.0.00045B.0.00081C.0.00141D.0.00841E.1.00843
A.0.2222B.0.2321C.0.2326D.0.2423E.0.2424
A.0.107458B.0.10698C.0.10546D.0.10456E.0.10365