单项选择题
A.5%-105%B.5%-110%C.10%-105%D.10%-110%
A.10B.12C.15D.20
A.2B.2.5C.0.03D.3.5
A.0.02,0.02B.0.025,0.02C.0.025,0.025D.0.02,0.025
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