如下是2012年01月02日的GMAT考试机经之逻辑机经部分，希望对考生有所帮助。

　　1.【犯人】

　　一个地方蹲监狱的犯人比以前多，有人就说是因为现在犯罪和判刑的人多了，问weaken?

　　狗主选项：之前判的刑期都比较长。 By williammba (Q50 V27)

　　考古： 感谢flyingnoodle

　　In each of the past five years, Barraland’s prison population has increased. Yet, according to official government statistics, for none of those years has there been either an increase in the number of criminal cases brought to trial, or an increase in the rate at which convictions have been obtained. Clearly, therefore, the percentage of people convicted of crimes who are being given prison sentences is on the increase.

　　Which of the following, if true, most seriously weakens the argument?

　　A. In Barraland the range of punishments that can be imposed instead of a prison sentence is wide.

　　B. Over the last ten years, overcrowding in the prisons of Barraland has essentially been eliminated as a result of an ambitious program of prison construction.

　　C. Ten years ago, Barraland reformed its criminal justice system, imposing longer minimum sentences for those crimes for which a prison sentence had long been mandatory.

　　D. Barraland has been supervising convicts on parole more closely in recent years, with the result that parole violations have become significantly less frequent.

　　E. The number of people in Barraland who feel that crime is on the increase is significantly greater now than it was five years ago.

　　2.【鱼吃鱼】

　　一个地方有一种鱼M，保护A吧，是因为这个鱼M要吃鱼C，而鱼M是以鱼C为食的。然后来了一个鱼W，砖家说对A有影响，问为什么

　　狗主选项：鱼W来了之后，鱼M开始吃W了。一个选项是W要吃M By buddhazxy

　　3.【消费投诉】

　　研究发现消费者会对生产厂家投诉，如果他们发现买回来的东西质量不好的话。但是如果买回来的东西价格很低，他们中的大部分人就不会投诉。问结论。 By 灰扑扑

　　4.【过桥费】

　　有个城市，居民的主要交通都需要经过南桥(south bridge)或北桥(north bridge)。最近北桥在做整修(还是状况不好?)，所以mayor决定北桥暂停收费，然后继续维持通车(traffic)。但是city mayor说不可以因此而损失利益，所以决定提升南桥30%的过路费，来弥补北桥的损失。问assumption.

　　狗主选项：对人民而言，it is hard to switch from one bridge to the other因为太不方便或太贵。 By a0684925

　　5.【沉船硬币】

　　一条船上考古发现了两种硬币，第一种是AD300-330年的，第二种是400年的(总之就是差了大概100年)，问解释

　　选项1、船被使用了100年

　　选项2、当时有种货币体制，说当时货币一直在使用

　　狗主选2。 By 白下

　　6.【杀虫剂】

　　有一个地方对杀虫剂使用做了规定，因为杀虫剂使用要取决于当地的气候，土地情况等才有效，所以必须由当地来规范，问削弱。

　　一个选项是生产商不会考虑你是LOCAL的还是NATIONAL的，另一选项是多数法规是Regional的而不是local或者national的. By larrylw (Q51 V26)

　　以上就是出出国老师整理的2012年1月3日的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。