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？

【分析推理题】

某办公室有三位工作人员：刘明、庄嫣和文虎。他们三人中，一人是博士，一人是硕士，还有一人是本科毕业生。已知博士比刘明大两岁；庄嫣与本科毕业生同岁，但是月份稍大；本科毕业生的年龄最小。

由此可以推知：

游玩组合

背景：有九个人出去游玩。两个成年男人盛和楠，三个妹纸时，夜，光，和四个孩子晓，雾，梓，叶。在游玩时，一共有九个座位，这九个座位在游乐场不同三个位置，三个座位一组。为了保证游玩质量，九个人根据以下条件分为三组：

1性别相同的成年人不能在一组

2晓不能在夜那组

3雾必须同夜或盛同组，或同时与二人同组

问题1
如果时是某组唯一的大人，那么她所在组的其他两个成员必须是：
A晓和雾
B晓和梓
C雾和梓
D雾和叶
E梓和叶

问题2
如果时和盛是第一组的两个成员，那么谁将分在第二组和第三组？
A夜，光，晓；楠，梓，叶
B夜，晓，叶；光，盛，雾
C夜，雾，梓；光，晓，叶
D光，楠，晓；夜，梓，叶
E晓，雾，梓；夜，楠，叶

问题3
下面那两个人能与晓同一组？
A时和梓
B夜和盛
C夜和楠
D盛和楠
E雾和叶

问题4
下面哪一个判定一定是对的？
A有一个成年妹子和两个孩子同一组
B有一个成年男人和晓同一组
C时和一个成年男人同组
D光那一组只有一个孩子
E有一个组没有孩子

问题5
如果光，梓和叶同一组，那么下列哪些是另一组成员？
A时，夜，楠
B时，盛，晓
C夜，盛，晓
D夜，楠，晓
E盛，楠，雾

所有正确的选项是？

【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.  

【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】

Which of the following mostlogically complete the passage?

     A recent government study links the highrates of respiratory ailment in Groverston to airborne pollutants released bythe Woodco plywood manufacturing plant there. To address the problem, thegovernment imposed strict regulations on emissions which will go into effect infour years. Although Woodco plans to cut its emissions in half two years aheadof schedule, it is unlikely that the rate of respiratory ailments will declinebefore the regulations go into effect, since .

     (A) the number of facilities capable oftreating respiratory ailments is not likely to increase

     (B) reducing emissions even further thanplanned would necessitate decreasing production at Woodco

     (C) it is difficult to make accurate,long-term predictions about emissions

     (D) not all respiratory ailments are causedby airborne pollutants

     (E) three new plywood manufacturing plantsare about to go into production in Groverston

【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】

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

《谎言 or 拯救情人》

又到了一年一度的情人节，不知名的侦探Hee准备在今年的情人节向女友求婚。

Hee和他的女朋友搭上一个浪漫的情人节巴士，同行的还有车上的12对情侣。

很不幸，旅行中他们遇到臭名昭著的恐怖组织————"骚死情侣团"。

"骚死情侣团"发现了Hee的身份，对Hee说道：

   我们将除你以外的所有人随机的尽可能平均的分成三组ABC。

   如果有一对情侣被分到了同一组，那么他们将被我们"骚死"并移出小组。

   现在一共还剩下13人，其中AB小组的情侣配对数最多，AC组的情侣配对数最少。

   某一组剩下的人比其余两组的剩下的总人数还要多。

   那么现在你知道你的女朋友在哪个小组了吗？如果你能答出来也许我们会考虑放掉你和你的女朋友。