单项选择题
A.Ⅰ、Ⅱ、Ⅲ B.Ⅰ、Ⅱ、Ⅳ C.Ⅰ、Ⅳ、Ⅴ D.Ⅰ、Ⅲ、Ⅴ
A.-12.5%;-3.28% B.-10.2%;-5.3% C.-6.8%;-1.2% D.-4.9%;-0.8%
A.P=60,Q=10 B.P=10,Q=6 C.P=40,Q=6 D.P=20,Q=20