已选分类
管理学
单选题The wild mouflon sheep of the island of Corsica are direct descendants of sheep that escaped from domestication on the island 8,000 years ago. They therefore provide archaeologists with a picture of what some early domesticated sheep looked like, before the deliberate selective breeding that produced modern domesticated sheep began.
The argument above makes which of the following assumptions?
单选题How many integers between 324,700 and 458,600 have tens digit 1 and units digit 3? (A) 10,300 (B) 10,030 (C) 1,353 (D) 1,352 (E) 1,339
单选题Woodsmoke contains dangerous toxins that cause changes in human cells. Because woodsmoke presents such a high health risk, legislation is needed to regulate the use of open-air fires and wood-burning stoves.
Which of the following, if true, provides the most support for the argument above?
单选题If x, y, and z are single-digit integers and 100(x)+1,000(y)+10(z)=N, what is the units' digit of the number N? (A) 0 (B) 1 (C) x (D) y (E) z
单选题TOTALEXPENSESFORTHEHVEDIVISIONSOFCOMPANYHThefigureaboverepresentsacirclegraphofCompanyH'stotalexpensesbrokendownbytheexpensesforeachofitsfivedivisions.IfOisthecenterofthecircleandifCompanyH'stotalexpensesare$5,400,000,whataretheexpensesfordivisionR?(1)x=94(2)ThetotalexpensesfordivisionsSandTaretwiceasmuchastheexpensesfordivisionR.
单选题The fossil record shows that the climate of North America warmed and dried at the end of the Pleistocene period. Most of the species of large mammals then living on the continent became extinct, but the smaller mammalian species survived.
Which of the following, if true, provides the best basis for an explanation of the contrast described above between species of large mammals and species of small mammals?
单选题The pages of a report are numbered consecutively from 1 to 10. If the sum of the page numbers up to and including page number z of the report is equal to one more than the sum of the page numbers following page number x, then x= (A) 4 (B) 5 (C) 6 (D) 7 (E) 8
单选题Sue is now 10 years younger than Jane. If in 5 years, Jane will be twice as old as Sue, how old will Sue be in 3 years? (A) 6 (B) 8 (C) 11 (D) 14 (E)18
单选题On Saturday Melvin suggested that Jerome take the following week off from work and accompany him on a trip to the mountains. Jerome refused, claiming that he could not afford the cost of the trip added to the wages he would forfeit by taking off without notice. It is clear, however, that cost cannot be the real reason, for Jerome"s unwillingness to go with Melvin to the mountains, since he makes the same excuse every time. Melvin asks him to take an unscheduled vacation regardless of where Melvin propose to go.
The reasoning is most vulnerable to which one of the following criticisms?
单选题Some people assert that prosecutors should be allowed to introduce illegally obtained evidence in criminal trials if the judge and jury can be persuaded that the arresting officer was not aware of violating or did not intend to violate the law while seizing the evidence. This proposed "good-faith exception" would weaken everyone"s constitutional protection, lead to less careful police practices, and promote lying by law enforcement officers in court.
The argument above for maintaining the prohibition against illegally obtained evidence assumes that
单选题Cars X and Y were traveling together on a straight road at a constant speed of 55 miles per hour when car X stopped for 5 minutes. If car Y continued to travel at 55 miles per hour, how many minutes from the time that car X resumed traveling did it take car X traveling at 60 miles per hour to catch up with car Y? (Assume that the time for car X to slow down and speed up was negligible.) (A) 5 (B) 30 (C) 45 (D) 55 (E) 60
单选题If,wherepandqarenonzerointegers,isnaninteger?(1)n2isaninteger.(2)isaninteger.(A)条件(1)充分，但条件(2)不充分．(B)条件(2)充分，但条件(1)不充分．(C)条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分．(D)条件(1)充分，条件(2)也充分．(E)条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．
单选题How many people are directors of both Company K and Company R? (1)There were 17 directors present at a joint meeting of the directors of Company K and Company R, and no directors were absent, (2)Company K has 12 directors and Company R has 8 directors.
单选题Which of the following, if true, best completes the argument below?
Comparisons of the average standards of living of the citizens of two countries should reflect the citizens" comparative access to goods and services. Reliable figures in a country"s own currency for the average income of its citizens are easily obtained. But it is difficult to get an accurate comparison of average standards of living from these figures, because______
单选题ThediagramaboveshowsthevariouspathsalongwhichamousecantravelfrompointX,whereitisreleased,topointY,whereitisrewardedwithafoodpellet.HowmanydifferentpathsfromXtoYcanthemousetakeifitgoesdirectlyfromXtoYwithoutretracinganypointalongapath?
单选题How many of the integers between 25 and 45 are even? (A) 21 (B) 20 (C) 11 (D) 10 (E) 9
单选题One way to judge the performance of a company is to compare it with other companies. This technique, commonly called “benchmarking,” permits the manager of a company to discover better industrial practices and can provide a justification for the adoption of good practices.
Any of the following, if true, is a valid reason for benchmarking the performance of a company against companies with which it is not in competition rather than against competitors EXCEPT:
单选题Each of the integers from 0 to 9, inclusive, is written on a separate slip of blank paper and the ten slips are dropped into a hat. If the slips are then drawn one at a time without replacement, how many must be drawn to ensure that the numbers on two of the slips drawn will have a sum of 10? (A) Three (B) Four (C) Five (D) Six (E) Seven
单选题Consumer income reports produced by the government distinguish between households and families by means of the following definition: “A family is a household containing a householder and at least one person related to the householder.” Except for the homeless and people in group living quarters, most people live in households.
According to the definition above, which of the following must be true?
单选题Amandrovehisautomobiled1kilometersattherateofr1kilometersperhourandanadditionald2kilometersattherateofr2kilometersperhour.Intermsofd1,d2,r1,r2,whatwashisaveragespeed,inkilometersperhour,fortheentiretrip?(E)Itcannotbedeterminedfromtheinformationgiven．