已选分类
管理学
单选题Anydecimalthathasonlyafinitenumberofnonzerodigitsisaterminatingdecimal.Forexample,24,0.82,and5.096arethreeterminatingdecimals.Ifrandsarepositiveintegersandtheratioisexpressedasadecimal,isaterminatingdecimal?(1)90＜r＜100(2)s=4(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Armtech, a temporary-employment agency, previously gave its employees 2. 5 paid vacation days after each 700 hours worked. Armtech"s new policy is to give its employees 5.0 paid vacation days after each 1,200 hours worked. Therefore, this new policy is more generous to Armtech employees in giving them more vacation days per hour worked than the old policy did.
Which of the following is an assumption on which the argument depends?
单选题Howmanylitersofpurealcoholmustbeaddedtoa100-litersolutionthatis20percentalcoholinordertoproduceasolutionthatis25percentalcohol?
单选题Fortypercentoftheratsincludedinanexperimentweremalerats.Ifsomeoftheratsdiedduringtheexperimentand30percentoftheratsthatdiedweremalerats,whatwastheratioofthedeathrateamongthemaleratstothedeathrateamongthefemalerats?
单选题"Headhunters" are firms that, for a fee, undertake to recruit for their clients personnel who are greatly needed yet hard to find. The clients, in turn, require that they be offlimits to headhunters whose services they buy; i.e., headhunters cannot raid one client"s staff on behalf of other clients.
Of the following, which would, if feasible, be the best strategy for a company to pursue if that company wanted both to use headhunters to fill a vacancy and, if successful in filling the vacancy, to reduce the risk of losing the newly hired employee to a competitor?
单选题A member of the British Parliament is reputed to have said, "The First purpose of good social reform is to increase the sum total of human happiness. So, any reform which makes somebody happy is achieving its purpose. Since the reform I propose would make my constituents happy, it is a good social reform. "
Which one of the following, if true, most seriously weakens the argument attributed to the member of Parliament?
单选题Each person on a committee with 40 members voted for exactly one of 3 candidates, F, G, or H. Did Candidate F receive the most votes from the 40 votes cast? (1)Candidate F received 11 of the votes (2)Candidate H received 14 of the votes. (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Financing for a large construction project was provided by a group of banks. When the money was gone before the project was completed, the banks approved additional loans. Now, with funds used up again and completion still not at hand, the banks refuse to extend further loans, although without those loans, the project is doomed.
Which of the following, if true, best explains why the bank"s current reaction is different from their reaction in the previous instance of depletion of funds?
单选题REVENUEFORSTOREXDURINGWEEK1Duringweek1,revenuefromeggsprovidedwhatpercentofthetotalrevenueforstoreX?
单选题A,B,andCeachdrove100-milelegsofa300-milecourseatspeedsof40,50,and60milesperhour,respectively.WhatfractionofthetotaltimedidAdrive?
单选题If Carmen had 12 more tapes, she would have twice as many tapes as Rafael. Does Carmen have fewer tapes than Rafael? (1)Rafael has more than 5 tapes. (2)Carmen has fewer than 12 tapes.
单选题How many gallons of water must be mixed with 1 gallon of a 15-percent salt solution to obtain a 10-percent salt solution? (A) 0.50 (B) 0.67 (C)1.00 (D) 1.50 (E) 2.00
单选题A certain Social Security recipient will receive an annual benefit of $12,000 provided he has annual earnings of $9,360 or less, but the benefit will be reduced by $1 for every $3 of annual earnings over $9,360. What amount of total annual earnings would result in a 50 percent reduction in the recipient"s annual Social Security benefit? (Assume Social Security benefits are not counted as part of annual earnings.)
单选题One night 18 percent of the female officers on a police force were on duty. If 180 officers were on duty that night and half of these were female officers, how many female officers were on the police force?
单选题Exactly how many bonds does Bob have? (1)Of Bob's bonds，exactly 21 are worth at least$5,000 each. (2)Of Bob's bonds, exactly 65 per cent are worth less than$5,000 each. (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At what speed was a train traveling on a trip when it had completed half of the total distance of the trip? (1)The trip was 460 miles long and took 4 hours to complete. (2)The train traveled at an average rate of 115 miles per hour Oil the trip. (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Thefigureaboveshowsacordaroundtwocirculardisks.Iftheradiiofthetwodisksare80centimetersand60centimeters,respectively,whatisthetotallength,incentimeters,ofthecord?
单选题Inthetableabove,whatistheleastnumberoftableentriesthatareneededtoshowthemileagebetweeneachcityandeachoftheotherfivecities?
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
单选题If the product of the integers ω, x, y, and z is 770, and if 1＜ω＜z＜y＜z, what is the value of ω+z? (A) 10 (B) 13 (C) 16 (D) 18 (E) 21