GMAT考试题库已于12月27日更新，以下是2011年12月的GMAT逻辑机经更新，更新日期从11年12月27日起至12年1月17日，目前共76题。澳际留学祝大家GMAT考试顺利!

　　58、【玉米价格】

　　Increased Demand for ethanol produced from corn in the United States spiked the corn prices and lowered the soy prices. Therore Brazil started to plant more soy hoping to offset the price drop. The environmental group does not want the government to do that because they argue it will damage the rain forest.

　　Which of the following, if true, strengthens the environmental group&aposs argument?

　　狗主选项：有关farmers are being pushed out of business so they have to expand their land. 不确定By hookem09

　　考古：

　　V1 corn 的价钱因为某国大量用corn去生产ethonol，一种替代能源，而上升。因此造成本国的农夫全部跑去种corn 而放弃soy bean。因此soy bean的价格上升。隔壁国(墨西哥还是某个南美国)的农夫就卯起来种soy bean。虽然说种这soy bean 对雨林- friendly 但是专家说尽管如此，雨林还是会受影响。Why?

　　狗主选项：因为地都拿去种soy了，那些ranger和放牧的就要搬迁(文中没有直接提到 ranger 会对雨林有坏处) 但是其它的都不像只好选这个。

　　V2 最近corn很吃香因为能生产XX，所以墨西哥人都去种corn，尽管种corn不会去开拓雨林土地，但是专家还是很担心这会对亚马逊产生不利影响，问为什么。

　　选项有雨林能提供xx能源，还有几个无关选项，都不太靠谱，

　　狗主选项：蒙了个因为种corn，原本种大豆的都会被dispalce去别的地方(可能就去开拓雨林土地了)。

　　V3巴西现在因为替代能源的关系，浓浓名多改种corn而少种soy。此举造成soy价格上升。学者认为替代能源会破坏雨林。问加强。

　　狗主选项：农民会迫使放牧者离开平原，而目前法律沒有限制放牧者可以去的地方(推荐，但不确定)

　　59、【杂志植物】

　　一本杂志发现刊登了植物照片或者介绍之类的以后，读者就会去购买这种植物。有些珍稀野生植物因为难以培育，卖这种植物的人就要从野外采摘。为了减少这种采摘，这家杂志决定不再刊登这些植物的内容了。问support. By zhangxiru2006

　　考古：prep 92 感谢鲤鱼迎门

　　Articles in Gardening Magazine often spur sales of the plants they describe, particularly among people new to gardening. Accordingly, we will no longer publish articles or accept advertisements praising the beauty of rare wildflowers. Most such plants sold to gardeners have been difficult to propagate under cultivation, so plant sellers often collect them in the wild. Our new policy is part of our forts to halt this yearly plundering of our native plant populations.

　　Which of the following, if true, casts the most doubt on the wisdom of the magazine&aposs new policy as a way of pursuing the intended fect?

　　A. When people new to gardening buy plants, they often fail to take adequate care of the plants that they buy and become discouraged from buying those varieties again.

　　B. Plant sellers who sell rare wildflowers have no reasonably inexpensive alternative way to offer their wares directly to new gardeners. 问加强

　　C. The demand for rare wildflowers rarely exceeds the number of such plants that can be collected in the wild by plant sellers.

　　D. The propagation of rare wildflowers often depends on the plants&apos interaction with other organisms in their environment, such as plants that create suitable soil conditions or insects and birds that disperse seeds.

　　E. Revenues from sales of plants collected in the wild are supporting the discovery of new low-cost techniques enabling rare wildflowers to be readily propagated in nurseries. 问削弱

　　以上就是12年1月17日更新的GMAT逻辑机经，考生可以适当借鉴，并通过练习来掌握GMAT逻辑的解题规律，从而顺利通过GMAT考试。 相关链接：

1.GMAT考试 12年1月17日更新GMAT逻辑机经（二）

2.GMAT考试牛人谈备考心得：逻辑备考攻略

3.超详细GMAT考试备考攻略分享：逻辑篇

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