已选分类
管理学
单选题Vanda's Butcher Shop sells packages of ground turkey and ground beef. Is the price for a pound of ground turkey less than that for a pound of ground beef? (1)The price for a package of ground turkey is 30 percent greater than the price for a package of ground beef. (2)A package of ground turkey weighs 25 percent more than a package of ground beef.
单选题If k is an integer greater than 44 and less than 51，then which of the following could be the product of 11 and k? (A) 565 (B) 550 (C) 500 (D) 484 (E) 440
单选题F: We ought not to test the safety of new drugs on sentient animals, such as dogs and rabbits. Our benefit means their pain, and they are equal to us in the capacity to feel pain.
G: We must carry out such tests; otherwise, we would irresponsibly sacrifice the human lives that could have been saved by the drugs.
Which of the following, if true, is the best objection that could be made from F"s point of view to counter G"s point?
单选题A car traveled 462 miles per tankful of gasoline on the highway and 336 miles per tankful of gasoline in the city. If the car traveled 6 fewer miles per gallon in the city than on the highway, how many miles per gallon did the car travel in the city?
单选题Inthefigureabove,whatisthelengthofPQtimesthelengthofRS?(1)ThelengthofPQis5.(2)ThelengthofORtimesthelengthofPRisequalto12.
单选题Accordingtothegraphabove，whenx=3,yismostnearly
单选题If x and y are prime numbers, which of the following CANNOT be the sum of x and y? (A) 5 (B) 9 (C) 13 (D) 16 (E) 23
单选题Xavier,Yvonne,andZeldaeachtryindependentlytosolveaproblem.Iftheirindividualprobabilitiesforsuccessareand,respectively,whatistheprobabilitythatXavierandYvonne,butnotZelda,willsolvetheproblem?
单选题In△ABCabove,ifAB=BC,whatisthevalueofy?(1)x=50(2)z=130
单选题Isthepositiveintegernequaltothesquareofaninteger?(1)Foreveryprimenumberp,ifpisadivisorofn,thensoisp2.(2)isaninteger
单选题How many three-digit numerals begin with a digit that represents a prime number and end with a digit that represents a prime number? (A) 16 (B) 80 (C) 160 (D) 180 (E) 240
单选题Anydecimalthathasonlyafinitenumberofnonzerodigitsisaterminatingdecimal.Forexample,24,0.82,and5.096arethreeterminatingdecimals.Ifrandsarepositiveintegersandtheratioisexpressedasadecimal,isaterminatingdecimal?(1)90＜r＜100(2)s=4
单选题Some governments have tried to make alcohol and tobacco less attractive to consumers by regulating what can be shown in advertisements for these products, rather than by banning advertising of them altogether. However, the need to obey the letter of these restrictions has actually stimulated advertisers to create advertisements that are more inventive and humorous than they were prior to the restrictions" introduction.
which of the following, if true, would, in conjunction with the statements above, best support the conclusion that the government policy described above fails to achieve its objective?
单选题If x, y, and z are positive integers and 3x=4y=7z, then the least possible value of x+y+z is
单选题A certain ball was dropped from a window 8 meters above a sidewalk. On each bounce it rose straight up exactly one-half the distance of the previous fall. After the third bounce the ball was caught when it reached a height of exactly 1 meter above the sidewalk. How many meters did the ball travel in all? (A) 21 (B) 19 (C) 17 (D) 15 (E) 13
单选题If x is the product of three consecutive positive integers, which of the following must be true? Ⅰ. x is an integer multiple of 3. Ⅱ. x is an integer multiple of 4. Ⅲ. x is an integer multiple of 6.
单选题Acertainshadeofgraypaintisobtainedbymixing3partsofwhitepaintwith5partsofblackpaint.If2gallonsofthemixtureisneededandtheindividualcolorscanbepurchasedonlyinone-gallonorhalfgalloncans,whatistheleastamountofpaint,ingallons,thatmustbepurchasedinordertomeasureouttheportionsneededforthemixture?
单选题Workingindependently,Tinacandoacertainjobin12hours.Workingindependently,Anncandothesamejobin9hours.IfTinaworksindependentlyatthejobfor8hoursandthenAnnworksindependently,howmanyhourswillittakeAnntocompletetheremainderofthejob?
单选题Do strong electric currents, by means of the electromagnetic fields that accompany them, cause cancer in people who live and work nearby? Telephone line workers, who work near such currents every day, can provide a test case. They show elevated levels of brain cancer; therefore, the hypothesis of electromagnetic causation is supported.
Which of the following, if true, most seriously weakens the argument?
单选题Aboywalkingalongaroadat3kilometersperhourisovertakenby3trucktravelingat40kilometersperhour.Ifthetruckbreaksdown1kilometerbeyondwhereitpassestheboy,howmanyminutesafterthebreakdowndoestheboyreachthetruck?