已选分类
管理学
单选题Inacertainflowershop,whichstocksfourtypesofflowerthereareasmanyvioletsascarnation，andasmanytulipsasviolets．Ifthereareequalnumbersofrosesandtulips，whatpercentoftheflowersintheshoparecarnations?(A)10%(B)33%(C)40%(D)50%(E)60%
单选题Harrystarteda6-milehikewithafull10-cupcanteenofwaterandfinishedthehikein2hourswith1cupofwaterremaininginthecanteen.Ifthecanteenleakedattherateof1cupperhourandHarrydrank3cupsofwaterduringthelastmile,howmanycupsdidhedrinkpermilduringthefirst5milesofthehike?
单选题What is the least possible product of 4 different integers, each of which has a value between -5 and 10, inclusive?
单选题Ifmoneyisinvestedatrpercentinterest,compoundedannually,theamountoftheinvestmentwilldoubleinapproximatelyyears．IfPat'sparentsinvested$5,000inalong-termandthatpays8percentinterest,compoundedannually,whatwillbetheapproximatetotalamountoftheinvestment18yearslater,whenPatisreadyforcollege?(A)$20,000(B)$15,000(C)$12,000(D)$10,000(E)$9,000
单选题If 1＜d＜2, is the tenths' digit of the decimal representation of d equal to 9? (1)d+0.01＜2 (2)d+0.05＞2 (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If n is a positive integer, is the value of b-a at least twice the value of 3n-2n? (1)a=2n+1 and b=3n+1 (2)n=3
单选题Neighboring landholders: Air pollution from the giant aluminum refinery that has been built next to our land is killing our plants.
Company spokesperson: The refinery is not to blame, since our study shows that the damage is due to insects and fungi. Which of the following, if true, most seriously weakens the conclusion drawn by the company spokesperson?
单选题A merchant paid $300 for a shipment of x identical calculators. The merchant used 2 of the calculators as demonstrators and sold each of the others for $5 more than the average (arithmetic mean) cost of the X calculators. If the total revenue from the sale of the calculators was $120 more than the cost of the shipment, how many calculators were in the shipment?
单选题No one can be licensed as an electrician in Parker County without first completing a certain course in electrical safety procedures. All students majoring in computer technology at Parker County Technical College must complete that course before graduating. Therefore, any of the college"s graduates in computer technology can be licensed as an electrician in Parker County.
The answer to which of the following would be most helpful in evaluating the argument?
单选题At a certain state university last term, there were p students each of whom paid either the full tuition of x dollars or half the full tuition. What percent of the tuition paid by the p students last term was tuition from students who paid the full tuition? (1)Of the P students, 20 percent paid the full tuition. (2)The p students paid a total of $91.2 million for tuition last term. (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A necklace is made by stringing N individual beads together in the repeating pattern red bead, green bead, white bead, blue bead, and yellow bead. If the necklace design begins with a red bead and ends with a white bead, then N could equal (A) 16 (B) 32 (C) 41 (D) 54 (E) 68
单选题Dense snow cover can cause unusually harsh weather patterns to persist. If a severe winter storm blankets the Great Plains, the snow cover reflects the sun"s radiation back into space and thus keeps the temperature of the ground tow. Consequently, cold air moving down from Canada remains cold enough to cause more snowstorms.
Which of the following is a conclusion that can be properly drawn from the information above?
单选题Company R's annual profit has increased by a constant amount each calendar year since 1985. What was Company R's annual profit in 1991? (1)In 1985 Company R's annual profit was $212.000; in 1989 Company R's annual profit was $242,000. (2)Company R's annual profit has increased by $7,500 each year since 1985. (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If x and y are positive integers and x is a multiple of y，is y=2?
(1)y≠1
(2)x+2 is a multiple of y.
单选题All actors are exuberant people and all exuberant people are extroverts, but nevertheless it is true that some shy people are actors.
If the statements above are true, each of the following must also be true EXCEPT:
单选题Isthepositiveintegernequaltothesquareofaninteger?(1)Foreveryprimenumberp,ifpisadivisorofn,thensoisp2.(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Inthefigureabove,lineACrepresentsaseesawthatistouchinglevelgroundatpointA.IfBisthemidpointofAC,howfarabovethegroundispointC?(1)x=30(2)PointBis5feetabovetheground.
单选题Psychological research indicates that college hockey and football players are more quickly moved to hostility and aggression than are college athletes in noncontact sports such as swimming. But the researchers" conclusion—that contact sports encourage and teach participants to be hostile and aggressive—is untenable. The football and hockey players were probably more hostile and aggressive to start with than the simmers.
Which of the following, if true, would most strengthen the conclusion drawn by the psychological researchers?
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?
单选题If the sum of the first n positive integers is S，what is the sum of the first n positive even integers, in terms of S?