A.0.5 B.0.8 C.1.0 D.1.1 E.1.2
A.1/斜率 B.1/dm C.(1/斜率)+dm D.(1/斜率)-dm E.(1/dm)+斜率
A.R85/2 B.U90/50 C.L90/L50 D.P80/20 E.U80/20