单项选择题
A.49.36B.50.52C.51.13D.52.02E.52.52
A.11.7B.12.1C.12.7D.13.6E.15.0
A.822B.830C.839D.852E.860
A.0.73B.1.22C.1.70D.2.45E.2.59
A.3809B.3906C.4017D.4123E.4235
A.5.27B.6.19C.6.32D.7.51E.8.00
A.4167B.4275C.4392D.4507E.4690
A.0.0B.0.5C.1.0D.1.5E.2.0
A.0.0720B.0.0769C.0.0812D.0.0863E.0.0962
A.1.30B.1.50C.1.70D.1.90E.2.10
A.6.32%B.6.82%C.7.81%D.8.23%E.8.92%