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六级阅读由10%的快读阅读，5%的简答题和20%的深度阅读构成，而深度阅读是六级考试重心之一，包括两篇文章，提醒：做题时间为20分钟左右，最多不能超过25分钟，否则会影响六级考试其它题型解答的时间。 Lesson9 36. We learn from the passage that olestra is a substance that_______. A) contains plenty of nutrients B) renders foods calorie-free while retaining their vitamins C) makes foods easily digestible D) makes foods fat-free while keeping them delicious 37.The result of the search for an easily digestible fat turned out to be_______. A) commercially useless B) just as anticipated C) somewhat controversial D) quite unexpected 38.Olestra is different from ordinary fats in that_______. A) it passes through the intestines without being absorbed B) it facilitates the absorption of vitamins by the body C) it helps reduce the incidence of heart disease D) it prevents excessive intake of vitamins 39.What is a possible negative effect of olesira according to some critics? A) It may impair the digestive system. B) It may affect the overall fat intake. | 
