GWD2-Q30

shuoben

The qualiy 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 qualit,the propotion of free oleic acid that an olive oil contains is an accurate measure of the oil's acidity.(C)

if the statements above are all ture,which of the following conclusions is best supported by them?

(C) if an unrefined olive oil is intermediate in acidtity between two other unrefined olive oils ,it will also be intermediate between them in quality.

(D) Free oleic acid is the only acid that unrefined olive oil contains 
不太明白C 是什么意思 ？   

crazecat123

C. 如果两种橄榄油的的酸度是差不多的，那它们的质量也差不多。

flyrabbitfei

精确地说，如果一种未提炼的橄榄油的酸度介于其它两种未提炼的橄榄油之间，那么它的质量也介于二者之间~