题目

Millie has             e-dog and its name is Hobo. A. a                B. the                  C. an             D. / 答案:C在Al2(SO4)3和MgSO4的混合溶液中,滴加NaOH溶液,生成沉淀的量与滴入NaOH溶液的体积关系如图所示,则原混合液中Al2(SO4)3与MgSO4的物质的量之比为A.6:1     B.3:1     C.2:1      D.1:2
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