单项选择题
A.0.05B.0.50C.0.01D.0.95
A.bdfB.bcgC.cegD.aci
A.30.5,0.5,4.5,-14.5B.30.5,-0.5,-4.5,-14.5C.30.5,0.5,-4.5,14.5D.30.5,0.5,-4.5,-14.5