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题库 / GMATAdvanced-CR-34
Mashika: We already know from polling data that some segments of the electorate provide significant support to Ms. Puerta. If those segments also provide significant support to Mr. Quintana, then no segment of the electorate that provides significant support to Mr. Quintana provides significant support to Mr. Ramirez.
Salim: But actually, as the latest polling data conclusively shows, at least one segment of the electorate does provide significant support to both Mr. Quintana and Mr. Ramirez.
Among the following statements, which is it most reasonable to infer from the assertions by Mashika and Salim?
At least one segment of the electorate provides significant support neither to Mr. Quintana nor to Mr. Ramirez.
At least one segment of the electorate provides significant support to Ms. Puerta but not to Mr. Quintana.
Each segment of the electorate provides significant support to Ms. Puerta.
Each segment of the electorate provides significant support to Mr. Quintana.
Each segment of the electorate provides significant support to Mr. Ramirez.
个人的想法不知道对不对
设A 为：provide support to Mr.Q; B 为：not Q& R
M说了： If A, then B
S说了： not B
结论：not A, 也就是not provide support to Mr.Q
或者可以用画图法
根据M 说法：P为一个大圆，里面有两个小圆，分别是1) Q but not R; 2) R but not Q -----2)情况符合答案B：在P 里，但not Q
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