若使SO2和SO3两种物质中含硫元素质量相等,则SO2和SO3的质量比为 请选择DCBA3_6m8`8y)h(o,Y4d0_1p,b:@
A.5:40_1p,b:@
B.3:20_1p,b:@
C.4:50_1p,b:@
D.2:30_1p,b:@