单项选择题
A.0.2%;0.3% B.0.3%;0.5% C.0.4%;0.3% D.0.5%;0.2%
A.BBB(含);A(含);AA(含) B.A(含);AA(含);AAA(含) C.AA(含);BBB(含);A(含) D.AAA(含);A(含);AA(含)