单项选择题
A.15 B.25 C.175 D.165
A.+3.75DS/-1.75DC×65 B.+3.75DS/-1.00DC×65 C.+3.50DS/-1.00DC×65 D.+4.00DS/-1.00DC×65
A.+3.75DS/-1.75DC×65 B.+3.75DS/-2.00DC×65 C.+3.50DS/-2.00DC×65 D.+4.00DS/-2.00DC×65