【专题 GMAT逻辑题】
Maize contains the vitaminniacin, but not in a form the body can absorb. Pellagra is a disease thatresults from niacin deficiency. When maize was introduced into southern Europefrom the America in the eighteenth century, it quickly became a dietary staple,and many Europeans who came to subsist primarily on maize developed pellagra.Pellagra was virtually unknown at that time in Americas, however, even among peoplewho subsisted primarily on maize.
Whichof the following, if true, most helps to explain the contrasting incidence ofpellagra described above?
(A)Once introduced into southern Europe, maize became popular with landownersbecause of its high yields relative to other cereal crops.
(B)Maize grown in the Americas contained more niacin than maize grown in Europedid.
(C)Traditional ways of preparing maize in the Americas convert maize’s niacin intoa nutritionally useful form.
(D)In southern Europe many of the people who consumed maize also ate niacin-richfoods.
(E) Before the discovery of pellagra’slink with niacin, it was widely believed that the disease was an infection thatcould be transmitted from person to person.
【专题 GMAT逻辑题】
The heavy traffic in Masana isa growing drain on the city’s economy-the clogging of the streets of thecentral business district alone cost the economy more than$1.2 billion over thepast year. In order to address this problem, officials plan to introducecongestion pricing, by which drivers would pay to enter the city’s most heavilytrafficked areas during the busiest times of the day.Which ofthe following, if true, would most strongly indicate that the plan will be asuccess?
A.Approximately one-fifth of the vehicles in the central business district are intransit from one side of the city to the other.
B.Planners expect that, without congestion pricing, traffic in Masana is likelyto grow by 6 percent in the next five years.
C. Inother urban areas, congestion pricing has strongly encouraged carpooling(sharing of rides by private commuters).
D.Several studies have shown that a reduction in traffic of 15 percent in Masanacould result in 5, 500 or more new jobs.
E. Over30 percent of the vehicles in the city’s center are occupied by more than oneperson.
【专题 GMAT逻辑题】
The number of applications for teachingpositions in Newtown’s public schools was 5.7 percent lower in 1993 than in 1985and 5.9 percent lower in 1994 than in 1985. despite a steadily growing student populationand an increasing number of teacher resignations, however, Newtown does not facea shortage in the late 1990’s. Which ofthe following, if true, would contribute most to an explanation of the apparentdiscrepancy above?
【A】Many of Newtown’s public school studentsdo not graduate from high school
【B】New housing developments planned for Newtownare (shared) for occupancy in 1987 and are expected to increase the number of elementaryschool students in Newtown’s public
【C】The Newtown school board does notcontemplate increasing the ratio of students to teachers in the 1990’s.
【D】Teachers’ colleges in and near Newtownproduced lower graduates in 1994 than in 1993
【E】In 1993 Newtown’s public schools received 40percent more applications for teaching positions than there were positions available
【专题 GMAT逻辑题】
The higher the level of certainvitamins and minerals in the bloodstream, the better a person's lung function, asmeasured by the amount of air the person can expel in one second. The lung functionof smokers is significantly worse, on average, than that of nonsmokers. Clearly,therefore, one way for smokers to improve their lung function is for them to increasetheir intake of foods that are rich in these helpful vitamins and minerals. Which of the following is an assumption on whichthis argument depends?
(A) Smokers are less likely than nonsmokers to have diets thatare rich in vitamins and minerals.
(B) The lung function of smokers whose diets are rich in thosevitamins and minerals is generally better than that of nonsmokers with comparablediets.
(C) People whose diets are deficient in those vitamins and mineralsdo not typically have other health problems in addition to diminished lung function.
(D) Stopping smoking will not typically improve lung functionmore than any diet changes can.
(E) Smoking does not introduce into the body chemicals thatprevent the helpful vitamins and minerals from entering the bloodstream.
George J. Summers
博物馆的警卫
阿特，鲍勃，凯博，艾达是博物馆中的四位警卫。
1阿特，鲍勃，凯博三人每个人每周分别值班四天。
2每天值班的警卫分别为两名。
3没有任何一名警卫连着值班三天。
4下面是每周值班表的一部分。
谁是从不与艾达一起值班的人？
George J. Summers
田间之旅
下图所画的是某个地方玉米田，麦田及稻田的排列方式。杰克正位于其中一块田的中间。他必须找到位于另一块田中间的他的爸爸。在他从自己所在的田到他爸爸走在田的途中：
1他在沿途会连续穿过五块田，并且每块田只穿过一次。
2对水稻过敏的杰克不可以穿过任何一块水稻田。
3他注意到没有任何两块种着同一种作物的田地是相邻的。
东西南三块田中哪一块种的水稻？
甲、乙、丙、丁、戊和己6个人正在超市排队交款。
己没有排在最后，而且他和最后一个人之间还有两个人;
戊不是最后一个人;
在甲的前面至少还有4个人，但他没有排在最后;
丁没有排在第一位，他前后至少都有两个人;
丙没有排在最前面，也没有排在最后。
请问，他们6个人的顺序是怎么排的?
国王的刁难
很久很久以前，有一位残暴的国王，在他统治的国家中，有两位杰出的哲学家分别是苏格、拉蒂。国王听闻这两个人才智非凡，便召来二人，设法刁钻。
国王对两位哲学家说：“听闻二位贤者智谋过人，本王很想见识一番。今天就给你一个小小的考验！本王现在给予你们各自一张纸，苏格你来写下一句预言；而拉蒂你来判断苏格的预言是否能够成真，你只能写‘是’或‘否’。我要求你们必须都说对或者都说错，否则你们都得死！现在开始写吧！”
如果这两位哲学家都足够聪明并且相信对方也足够聪明的话，那么拉蒂应该写下“是”还是“否”呢？
国王的刁难2（升级版）
建议先做一下“国王的刁难”再做本题。
很久很久以前，有一位残暴的国王，在他统治的国家中，有两位杰出的哲学家分别是苏格、拉蒂。国王听闻这两个人才智非凡，便召来二人，设法刁难。
国王对两位哲学家说：“听闻二位贤者智谋过人，本王很想见识一番。今天就给你一个小小的考验！本王现在给予你们各自一张纸，苏格你来写下一句预言；而拉蒂你来预言苏格的预言是否能够成真，你只能写‘是’或‘否’。你们当中预言成真的人会活下来，预言失败的人会被处死，而且必须要有人预言没有成真，否则两个人都得死！那么现在就开始写吧！”
如果这两位哲学家都足够聪明并且都想活命的话，那么最终到底谁能活命？
【专题 GMAT逻辑题】
Which of the following mostlogically completes the argument? Sviatovinis a medieval Moringian text whose author and exact date of composition areunknown. However, the events in the life of Prince Sviatov that the textdescribes occurred in 1165, and in the diagram of Sviatov’s family thataccompanies the text his father, who died in 1167, is identified as stillliving. Thus Sviatovin must have been written between 1165 and 1167, assuringthat.
A. thelife of Prince Sviatov is not the subject of any other medieval Moringian texts
B. theauthor of Sviatovin intended it to provide as accurate a report about PrinceSviatov's exploits as possible
C. thediagram accurately represents the composition of Sviatov's family at thetimeSviatovin was written
D.Sviatovin is the earliest Moringian text whose composition can be dated towithin a few years
E Sviatovin was not written by Sviatov's father himself
小张和老王两人都有透视物体的特殊能力，并且还有如下特点：小张每说五句话，必有四句是假话；老王每说七句话，必有两句是真话。
现在给他们看十只不透明的木箱子，问他们俩哪些箱子里装有乒乓球，两人的回答都是：“一号箱子有。二号箱子也有。三号箱子也有。四号箱子没有。五号箱子有。六号箱子没有。七号箱子也没有。八号箱子有。九号箱子也有。十号箱子也有。”
那么这十只箱子里，可能有多少只箱子装有乒乓球呢？（假设他们两人事先没有串通）
军长，师长，旅长，团长，营长，连长，排长，班长8人，在操场上4人一排，面对面站二排。营长站在军长与班长之间，而他的对面是师长。连长站在他这一排的最边上，而他的左边是师长。排长也是站在他这一排的最边上，他的对面一排的另一边上正好是军长，俩人形成对角线位置。
请问，团长站在哪里？
