题目来源
题目来源1 : 2020年GRE数学新800题
正确率：90%
难度：2
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The table shows the results of a survey of 1,200 investors who were asked to name their sources regarding investment advice. 300 of those surveyed named both stockbrokers and financial planners as sources, how many of those surveyed name neither of these two sources?
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以上解析由 考满分老师提供。
