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标题: 酸死了的GWD2-17 [打印本页]

作者: 跟着笨笨去美国 时间: 2010-4-20 20:06
标题: 酸死了的GWD2-17

?GWD-10-Q30:GWD-2-17

?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?

A.When an olive oil is refined, the concentration of oleic acid in the oil is reduced.

B.The quality of an unrefined olive oil can be determined only by accurately measuring its acidity.

C.If an unrefined olive oil is intermediate in acidity 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.

E.People who judge the quality of unrefined olive oils actually judge those oils by their acidity, which the judges can taste.

请教NN D选项哪里有错？如果还有别的酸，那还能说The proportion of free oleic acid that an olive oil contains is an accurate measure of the oil’s acidity.么？
我以为这算是“排除他因”
囧。。。。望NN指导

作者: gzpg 时间: 2010-4-21 02:40
这是一个推导题。所推出的范围必须仅依据原文提供的事实。
原文提到free oleic acid是一种准确的测量原油酸度的指标，但是没有任何信息告诉我们这是唯一的指标！ d选项 the only,,,是错误的标志。

作者: 跟着笨笨去美国 时间: 2010-4-21 10:09

这是一个推导题。所推出的范围必须仅依据原文提供的事实。
原文提到free oleic acid是一种准确的测量原油酸度的指标，但是没有任何信息告诉我们这是唯一的指标！ d选项 the only,,,是错误的标志。

-- by 会员 gzpg (2010/4/21 2:40:23)

谢MM指导吖我明白咯~~

作者: Jasmine10 时间: 2010-4-22 23:27
Is the correct answer A?

作者: rainbowmanutd 时间: 2010-4-22 23:44
选什么啊。。是e吗。。

作者: 跟着笨笨去美国 时间: 2010-4-23 23:09

选什么啊。。是e吗。。

-- by 会员 rainbowmanutd (2010/4/22 23:44:17)

没错

作者: michelle_luo 时间: 2010-5-22 17:28
答案是C 不是E
原文不可以归纳出酸度可以通过尝味道来判断

作者: oo1x1oo 时间: 2010-5-22 23:53
是c~~

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