题型:名词解释 若用浓度为30%和20%的甲乙两种食盐溶液配成浓度为24%的食盐溶液500g,则甲乙两种溶液各取()。A.180g,320gB.185g,315gC.190g,310gD.195g,305gE.200g,300g 查看答案