已选分类
管理学工商管理
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
单选题How many positive integers k are there such that 100k is a factor of (22)(3)(53)?
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?
单选题DISTRlBUTl0NOFSALESINCOMEFORSTORESLASTWEEKAccordingtothegraphabove,thesaleoffruitsandvegetablesinStoreSlastweekaccountedforwhatpercentofthetotalsalesincomefortheweek?(1)LastweekthetotalincomefromthesaleoffruitsandvegetablesinStoreSwas$16,000.(2)x=2y
单选题An infinite sequence of positive integers is called an "alpha sequence" if the number of even integers in the sequence is finite. If S is an infinite sequence of positive integers, is S an alpha sequence? (1)The first ten integers in S are even. (2)An infinite number of integers in S are Odd.
单选题Walter: A copy of an artwork should be worth exactly what the original is worth if the two works are visually indistinguishable. After all, if the two works are visually indistinguishable, they have all the same qualities, and if they have all the same qualities, their prices should be equal.
Marissa: How little you understand art! Even if someone could make a perfect copy that is visually indistinguishable from the original, the copy would have a different history and hence not have all the same qualities as the original.
单选题Ifab≠0,inwhatquadrantofthecoordinatesystemabovedoespoint(a,b)lie?(1)(b,a)liesinquadrantⅣ.(2)(a,-b)liesinquadrantⅢ.
单选题If P is a set of integers and 3 is in P, is every positive multiple of 3 in P? (1)If x is in P，then x+3 is in P. (2)If x is in p, then x-3 is in p.
单选题In an office, 40 percent of the workers have at least 5 years of service, and a total of 16 workers have at least 10 years of service. If 90 percent of the workers have fewer than 10 years of service, how many of the workers have at least 5 but fewer than 1 0 years of service?
单选题When cut, the synthetic material fiberglass, like asbestos, releases microscopic fibers into the air. It is known that people who inhale asbestos fibers suffer impairment of lung function. A study of 300 factory workers who regularly cut fiberglass showed that their lung capacity is, on average, only 90 percent of that of a comparable group of people who do not cut fiberglass.
The statements above, if tree, most strongly support which of the following hypotheses?
单选题If n is an integer between 2 and 100 and if n is also the square of an integer, what is the value of n? (1)n is the cube of an integer. (2)n is even. (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NUMBEROFFARMSINTHEUNITEDSTATES,Theaverageacreageperfarmwasapproximately140in1910and220in1950.Theratioofthetotalfarmlandacreagein1910tothetotalin1950wasmostnearly
单选题Every human being who has ever lived had two parents. Therefore, more people were alive three thousand years ago than are alive now.
The reasoning in the argument is flawed because it
单选题Ifwhenacertainmtegerxisdividedby5theremainderis2,theneachofthefollowingcouldalsobeaninteger
单选题How many integers 72 greater than 10 and less than 100 are there such that, if the digits of n are reversed, the resulting integer is n+9? (A) 5 (B) 6 (C) 7 (D) 8 (E) 9
单选题Asumof$200,000fromacertainestatewasdividedamongaspouseandthreechildren.Howmuchoftheestatedidtheyoungestchildreceive?(1)Thespousereceivedofthesumfromtheestate,andtileoldestchildreceivedoftheremainder.(2)Eachofthetwoyoungerchildrenreceived$12.500morethantheoldestchildand$62,500lessthanthespouse.