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悉尼大学商学国贸双硕士毕业，现居澳洲，在澳学习生活15+年，从事教育咨询工作超过10年，澳洲政府注册教育顾问，上千成功升学转学签证案例，定期受邀亲自走访澳洲各类学校
为方便大家备考GMAT考试，澳际留学为特为大家收集2011年GMAT机经，下面是2011年GMAT逻辑机经整理，截至2011年1月25日，共134题，以下从31题开始，前1-30题，见 GMAT机经,2010年12月GMAT逻辑机经(至12.30)(一)。希望能够帮助大家，澳际留学祝大家考试顺利！
51黑体
很简单，我没仔细看内容就选了。批评家：Context, The government points out that xxx. However，the fact cited by the government is not xxxx，So xxx，since xxx. The two boldfaced portions play which of the following roles? 1. a conclusion which the argument rutes 2 The main conclusion of the argument.( Q51V38)
52黑体
BF题直接原文呈现 BF部分就是下面题中BF部分，连接词的位置就是我下面放的位置，十分肯定
说的是古生物学家对之前一种理论的回应，那种理论认为在考古中发现，在海洋底部生活的一些生物在某一时期出现了大量的死亡，这一时期正好赶上了ice age，所以认为海洋底部生物的大量减少是因为被冻死的，however,海洋底部的温度变化非常小，nevertheless, ice age导致生物冻死可能是一个导致海底生物大量死亡的一个间接原因。研究发现，海底生物大量吃的一种plankton 是生活在海洋的surface的，他们在海洋的表层会因为ice age而冻死。他们的尸体会降到海底，所以不是因为ice age导致海底动物的大量减少死亡，因为它根本不会冻死海底动物。
问以上两处bf是什么作用，我选的是1是古生物学家用来反驳一个假说的例子，2是古生物学家证明自己观点的evidence 大家仔细读题，（大概这个意思）很绞。。。（V16）
52题 老PREP 2 32.(31313-!-item-!-188;#058&006235) Paleontologist: About 2.8 million years ago, many species that lived near the ocean floor suffered substantial population declines.These declines coincided with the onset of an ice age. The notion that cold killed those bottom-dwelling creatures outright is misguided, however; temperatures near the ocean floor would have changed very little. Nevertheless, the cold probably did cause the population declines, though indirectly. any bottom-dwellers depended for food on plankton, small organisms that lived close to the surface and sank to the bottom when they died. Most probably, the plankton suffered a severe population decline as a result of sharply lower temperatures at the surface, depriving many bottom-dwellers of food. In the paleontologist&aposs reasoning, the two portions in boldface play which of the following roles? (A) The first introduces the hypothesis proposed by the paleontologist; the second is a judgment offered in spelling out that hypothesis （Answer） (B) The first introduces the hypothesis proposed by the paleontologist; the second is a position that the paleontologist opposes. (B) The first introduces the hypothesis proposed by the paleontologist; the second is a position that the paleontologist opposes. (C) The first is an explanation challenged by the paleontologist; the second is an explanation proposed by the paleontologist. (D) The first is a judgment advanced in support of a conclusion reached by the paleontologist; the second is that conclusion. (E) The first is a generalization put forward by the paleontologist; the second presents certain exceptional cases in which that generalization does not hold.
为方便大家备考GMAT考试，澳际留学为特为大家收集2011年GMAT机经，下面是2011年GMAT逻辑机经整理，截至2011年1月25日，共134题，以下从31题开始，前1-30题，见 GMAT机经,2010年12月GMAT逻辑机经(至12.30)(一)。希望能够帮助大家，澳际留学祝大家考试顺利！
51黑体
很简单，我没仔细看内容就选了。批评家：Context, The government points out that xxx. However，the fact cited by the government is not xxxx，So xxx，since xxx. The two boldfaced portions play which of the following roles? 1. a conclusion which the argument rutes 2 The main conclusion of the argument.( Q51V38)
52黑体
BF题直接原文呈现 BF部分就是下面题中BF部分，连接词的位置就是我下面放的位置，十分肯定
说的是古生物学家对之前一种理论的回应，那种理论认为在考古中发现，在海洋底部生活的一些生物在某一时期出现了大量的死亡，这一时期正好赶上了ice age，所以认为海洋底部生物的大量减少是因为被冻死的，however,海洋底部的温度变化非常小，nevertheless, ice age导致生物冻死可能是一个导致海底生物大量死亡的一个间接原因。研究发现，海底生物大量吃的一种plankton 是生活在海洋的surface的，他们在海洋的表层会因为ice age而冻死。他们的尸体会降到海底，所以不是因为ice age导致海底动物的大量减少死亡，因为它根本不会冻死海底动物。
问以上两处bf是什么作用，我选的是1是古生物学家用来反驳一个假说的例子，2是古生物学家证明自己观点的evidence 大家仔细读题，（大概这个意思）很绞。。。（V16）
52题 老PREP 2 32.(31313-!-item-!-188;#058&006235) Paleontologist: About 2.8 million years ago, many species that lived near the ocean floor suffered substantial population declines.These declines coincided with the onset of an ice age. The notion that cold killed those bottom-dwelling creatures outright is misguided, however; temperatures near the ocean floor would have changed very little. Nevertheless, the cold probably did cause the population declines, though indirectly. any bottom-dwellers depended for food on plankton, small organisms that lived close to the surface and sank to the bottom when they died. Most probably, the plankton suffered a severe population decline as a result of sharply lower temperatures at the surface, depriving many bottom-dwellers of food. In the paleontologist&aposs reasoning, the two portions in boldface play which of the following roles? 上12下
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