单项选择题
A.-5.50DS/-1.50DC×85 B.-5.50DS/-2.00DC×85 C.-5.25DS/-2.25DC×85 D.-5.75DS/-2.25DC×85
A.-5.50DS/-1.50DC×85 B.-5.50DS/-2.00DC×85 C.-5.25DS/-1.25DC×85 D.-5.75DS/-1.25DC×85
A.+5.50DS/-1.50DC×85 B.+5.50DS/-2.00DC×85 C.+5.25DS/-2.25DC×85 D.+5.75DS/-2.25DC×85