单项选择题
A.0.15%,0.15% B.0.20%,0.15% C.0.20%,0.20% D.0.30%,0.30%
A.0.17 B.0.29 C.0.33 D.0.45
A.Ⅰ、Ⅱ正确,Ⅲ错误 B.Ⅱ、Ⅲ正确,Ⅰ错误 C.Ⅰ、Ⅲ正确,Ⅱ错误 D.Ⅰ、Ⅱ、Ⅲ均正确