A.減-0.25DC B.減-0.25DS C.加+0.12DS D.加+0.25DS
A.+0.75DS/-1.50DC×40 B.+1.25DS/-1.50DC×40 C.+1.00DS/-1.50DC×40 D.+0.75DS/-1.50DC×130
A.減少0.50 B.減少0.25 C.增加0.50 D.增加0.25