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题库 / GMATLA-CR-4
The quality of unrefined olive oil is not actually defined in terms of acidity, yet extensive tests have shown that the less free oleic acid an unrefined olive oil contains per liter, the higher its quality. The proportion of free oleic acid that an olive oil contains is an accurate measure of the oil's acidity.
If the statements above are all true, which of the following conclusions is best supported by them?
When an olive oil is refined, the concentration of oleic acid in the oil is reduced
The quality of an unrefined olive oil can be determined only by accurately measuring its acidity.
If an unrefined olive oil is intermediate in acidity between two other unrefined olive oils, it will also be intermediate between them in quality.
Free oleic acid is the only acid that unrefined olive oil contains
People who judge the quality of unrefined olive oils actually judge those oils by their acidity, which the judges can taste
注意，文章中出现了，the + 比较级（A），the + 比较级的表达形式（B）。这样的表达形式，其实是暗含了，其中的因果逻辑关系的。也就是A的增长，导致了B的增长，所以这是我们在判断选项答案的时候要注意的点。
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