下面是是2011年2月及3月GMAT逻辑机经，自2011年2月25日起至2011年3月3日，截至目前共28题，方便大家查阅。百考试题祝同学们考试顺利!
1 小孩 有个说玩block的小孩对文字理解更好 做个试验小孩分成玩block和不玩的考察他们的communication能力 结果玩block的好 so家长要多让小孩玩block type：evaluation reference answer: E 玩block的小孩家人有没有对小孩有verb训练 （大概意思） 讨论 结论：家长让小孩玩block 原因：试验显示玩block的小孩比不玩block的小孩的communication能力高 分析：看试验对象的差异， 如果玩或不玩block是两组试验对象的唯一差异， 则能说明结论成立， 如果还有其它差异， 如 玩block的有verb训练， 则结论不成立 2 捕鱼 有一道很简单的逻辑，GWD有的，说要保护一种鱼，然后引入旅游业，让捕鱼的去搞旅游，问你要考虑神马问题， type: RA: 应该就是旅游带来的危害和捕杀相比会不会更严重。 考古（来自brendaqian）： In parts of the Caribbean, the manatee, an endangered marine mammal, has long been hunted for its meat. Having noted the manatee hunters’ expert knowledge of manatees’ habits, local conservationists are encouraging the hunters to stop hunting and instead to take tourists on boat rides to see manatees. Tourist interest is high, so the plan has promise of achieving the twin goals of giving the former hunters a good income and helping ensure the manatees’ survival. Which of the following, if true, raises the most serious doubt about the plan’s chance of success? 1.Many tourists who visit these parts of the Caribbean are uninterested in manatees and would not be willing to pay what the former manatee hunters would have to charge for boat rides to see manatees. 2.Recovery of the species would enable some hunting to continue without putting the manatees’ survival in jeopardy again. 3.In areas where manatees have traditionally been hunted for food, local people could easily replace the manatee meat in their diets with other foods obtained from the sea. 4.There would not be enough former manatee hunters to act as guides for all the tourists who want to see manatees. 5.To maintain their current income, manatee hunters who switched to guiding tourists would have to use far larger boats and make many more trips into the manatees’ fragile habitat than they currently do.