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标题: prep p1 40 [打印本页]

作者: moumouliu 时间: 2011-5-6 16:49
标题: prep p1 40
40.
(32869-!-item-!-188;#058&006461)

Columnist:

eople should avoid using a certain artificial fat that has been touted as a resource for those whose medical advisers have advised them to reduce their fat intake. Although the artificial fat, which can be used in place of fat in food preparation, has none of the negative health effects of fat, it does have a serious drawback: it absorbs certain essential vitamins, thereby preventing them from being used by the body.

In evaluating the columnist's position, it would be most useful to determine which of the following?

(A) Whether increasing one's intake of the vitamins can compensate for the effects of the artificial fat
(B) Whether the vitamins that the artificial fat absorbs are present in foods that contain the fat
(C) Whether having an extremely low fat intake for an extended period can endanger the health
(D) Whether there are any foods that cannot be prepared using the artificial fat as a substitute for other fats
(E) Whether people are generally able to detect differences in taste between food
看来看去就是不知道a为什么对！！！

作者: alexdeng123 时间: 2011-5-7 15:26
鄙人的见解是如果回答yes 那么可以通过多吃这种vitamin来弥补fat吸收而损失的vitamin 因而削弱了作假的观点。如果回答no 那么fat吸收这种vitamin就没法再弥补损失了就损失了所以支持了作家观点。其他的选项都没啥相关性。。。。鄙人愚见！

作者: lovepunch 时间: 2011-5-7 17:19

鄙人的见解是如果回答yes 那么可以通过多吃这种vitamin来弥补fat吸收而损失的vitamin 因而削弱了作假的观点。如果回答no 那么fat吸收这种vitamin就没法再弥补损失了就损失了所以支持了作家观点。其他的选项都没啥相关性。。。。鄙人愚见！

-- by 会员 alexdeng123 (2011/5/7 15:26:45)

楼上正解！
结论：人们应避免使用某种MA建议减少摄入的人工脂肪
陈述1：尽管人工脂肪可用来替代食物准备中的脂肪并没有不良健康影响
陈述2：它有严重弊端：人工脂肪会吸收必需的维他命，从而使得维他命不被人体吸收。

A，是否增加维生素的摄入可以弥补人工脂肪的影响（对于吸收维生素的不良影响）正确。文中说人工脂肪会吸收维他命，导致维他命不被人体吸收，但如果我们自己补充了这样流失的维他命可行，那么就不必减少人工脂肪——削弱；如果不可行，则需要减少——加强。一面削弱，一面加强，正是评估的关键所在。选A

其他几个就不说了，均无关。
个人愚见哈~

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