已选分类
管理学
单选题To reduce costs, a company is considering a drastic reduction in the number of middle-level managers. This reduction would be accomplished by first offering early retirement to those 50 years of age or older with 15 years of service, and then by firing enough of the others to bring the overall reduction to 50 percent.
Each of the following, assuming that it is a realistic possibility, is a possible disadvantage to the company of the plan EXCEPT:
单选题When a person is under intense psychological stress, his or her cardiovascular response is the same as it is during vigorous physical exercise. Psychological stress, then, must be beneficial for the heart as is vigorous physical exercise.
The argument above relies on which of the following assumptions?
单选题A 2-year certificate of deposit is purchased for k dollars. If the certificate earns interest at an annual rate of 6 percent compounded quarterly, which of the following represents the value, in dollars, of the certificate at the end of the 2 years? (A) (1.06)2k (B) (1.06)8k (C) (1.015)2k (D) (1.015)8k (E) (1.03)4k
单选题How many minutes long is time period X? (1)Time period X is 3 hours-long. (2)Time period X starts at 11 p.m. and ends at 2 a.m.
单选题If a certain grove consists of 36 pecan trees, what was the yield per tree last year?
(1)The yield per tree for the 18 trees in the northern half of the grove was 60 kilograms last year.
(2)The yield per tree for the 18 trees in the eastern half of the grove was 55 kilograms last year.
单选题Scientists now believe that artificial-hip implants, previously thought to be safe, may actually increase the risk of cancer in recipients after about 45 years of use. Though these implants do improve the quality of recipients" lives, the increased risk of cancer is an unacceptable price to pay for these improvements. Therefore, they should be banned.
Which of the following, if true, is the strongest counterargument to the argument above?
单选题A merchant purchased a jacket for $60 and then determined a selling price that equalled the purchase price of the jacket plus a markup that was 25 percent of the selling price. During a sale, the merchant discounted the selling price by 20 percent and sold the jacket. What was the merchant's gross profit on this sale?
单选题How many positive prime numbers are less than the integer n? (1)14＜n＜20 (2)13＜n＜17 (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 r⊙s=rs+r+s, then for what value of s is r⊙s equal to r for all values of r?
单选题Questionsrefertothefollowinggraph.AVERAGECOSTSOFOPERATINGSUBCOMPACT,COMPACT,ANDMIDSIZECARSINTHEUNITEDSTATES,1982～1986
单选题The inflation index for the year 1989 relative to the year 1970 was 3.56, indicating that, on the average, for each dollar spent in 1970 for goods, $3.56 had to be spent for the same goods in 1989. If the price of a Model K mixer increased precisely according to the inflation index, what was the price of the mixer in 1970? (1)The price of the Model K mixer was $102.40 more in 1989 than in 1970. (2)The price of the Model K mixer was $142.40 in 1989. (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Intheadditionproblemabove,thenumber□mustbe(A)5(B)6(C)7(D)8(E)9
单选题When the integer n is divided by 6, the remainder is 3. Which of the following is NOT a multiple of 6? (A) n-3 (B) T+3 (C) 2n (D) 3n (E) 4n
单选题Questionsrefertothefollowinggraph.1977～1978TEXTB()OKINVENTORYFORSCHOOLSXANDYBYYEAROFPURCHASE(asapercentofthe1977～1978inventory)Note：AllbookswerepurchasednewonJuly1ofeachyear.
单选题IftankXcontainsonlygasoline,howmanykilolitersofgasolineareintankX?(1)IfofthegasolineintankXwerepumpedoutthetankwouldbefilledtoofitscapacity.(2)If0.75kiloliterofgasolinewerepumpedintotankX,itwouldbefilledtocapacity.
单选题On a certain scale of intensity, each increment of 10 in magnitude represents a tenfold increase in intensity. On this scale, an intensity corresponding to a magnitude of 165 is how many times an intensity corresponding to a magnitude of 125? (A) 40 (B) 100 (C) 400 (D) 1,000 (E) 10,000
单选题There were 36,000 hardback copies of a certain novel sold before the paperback version was issued. From the time the first paperback copy was sold until the last copy of the novel was sold, 9 times as many paperback copies as hardback copies were sold, if a total of 441, 000 copies of the novel were sold in all, how many paperback copies were sold? (A) 45,000 (B) 360,000 (C) 364,500 (D) 392,000 (E) 396,900
单选题Although it is assumed that peacocks" magnificent tails function essentially to attract peahens, no one knows why it should be magnificent tails that give a competitive advantage in securing mates. One explanation is that peahens are more likely to mate with peacocks with magnificent tails than with peacocks that lack magnificent tails.
Which of the following is an error of reasoning exemplified by the explanation?
单选题Atotalof774doctoratesinmathematicsweregrantedtoUnitedStatescitizensbyAmericanuniversitiesinthe1972～1973schoolyear,andWofthesedoctoratesweregrantedtowomen.Thetotalofsuchdoctoratesinthe1986～1987schoolyearwas362,andωoftheseweregrantedtowomen.IfthenumberofdoctoratesinmathematicsgrantedtofemalecitizensoftheUnitedStatesbyAmericanuniversitiesdecreasedfromthe1972～1973schoolyeartothe1986～1987schoolyear,wasthedecreaselessthan10percent?(1)(2)W=ω+5
单选题A company that ships boxes to a total of 12 distribution centers uses color coding to identify each center. If either a single color or a pair of two different colors is chosen to represent each center and if each center is uniquely represented by that choice of one or two colors, what is the minimum number of colors needed for the coding? (Assume that the order of the colors in a pair does not matter.) (A) 4 (B) 5 (C) 6 (D) 12 (E) 24