已选分类
管理学
单选题InyearXatotalof355billiondollarswasspentforhealthcareintheUnitedStates,30percentofwhichwasspentbyprivatehealthinsurancecompanies.Wastheamountspentforhealthcarebythefederalgovernment'smedicareprogramlessthan60billiondollars?(1)InyearXmedicarespentmorethan,butlessthan,oftheamountspentbytheprivatehealthinsurancecompaniesforhealthcare.(2)InyearXmedicarespent50billiondollarslessforhealthcarethantheamountspentbyprivatehealthinsurancecompanies.
单选题An employee is paid 1.5 times the regular hourly rate for each hour worked in excess of 40 hours per week, excluding Sunday, and 2 times the regular hourly rate for each hour worked on Sunday. How much was the employee paid last week? (1)The employee's regular hourly rate is $10. (2)Last week the employee worked a total of 54 hours but did not work more than 8 hours on any day. (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 a sequence of 8 consecutive odd integers with increasing values has 9 as its 7th term, what is the sum of the terms of the sequence?
单选题What is the remainder when the positive integer x is divided by 2? (1)x is an odd integer. (2)x is a multiple of 3.
单选题If S is the sum of the first n positive integers, what is the value of n? (1)S＜20 (2)S2＞220
单选题Advertisers are often criticized for their unscrupulous manipulation of people"s tastes and wants. There is evidence, however, that some advertisers are motivated by moral as well as financial considerations. A particular publication decided to change its image from being a family newspaper to concentrating on sex and violence, thus appealing to a different readership. Some advertisers withdrew their advertisements from the publication, and this must have been because they morally disapproved of publishing salacious material.
Which one of the following, if true, would most strengthen the argument?
单选题How many two-element subsets of 1, 2, 3, 4are there that do not contain the pair of elements 2 and 4?
单选题After 5 games, a rugby team had an average of 28 points per game. In order to in crease the average by n points, how many points must be scored in a 6th game?
单选题Last year the annual premium on a certain hospitalization insurance policy was $408, and the policy paid 80 percent of any hospital expenses incurred. If the amount paid by the insurance policy last year was equal to the annual premium plus the amount of hospital expenses not paid by the policy, what was the total amount of hospital expenses last year? (A) $850.00 (B) $680.00 (C) $640.00 (D) $510.00 (E) $326.40
单选题Howmanyfactorsof60aregreaterthan?(A)Twelve(B)Nine(C)Eight(D)Seven(E)Six
单选题Inthefigureabove,ifAB∥CE,CE=DE,andy=45,thenx=
单选题Three stacks containing equal numbers of chips are to be made from 9 red chips, 7 blue chips，and 5 green chips．If all of these chips are used and each stack contains at least 1 chip of each color, what is the maximum number of red chips in any one stack? (A) 7 (B) 6 (C) 5 (D) 4 (E) 3
单选题Is the integer n a multiple of 140? (1) n is a multiple of 10. (2) n is a multiple of 14. (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Thetableaboveshowsthecost,indollars,oftravelingtoandfromcitiesA,B,C,D,E,andF.AsalesrepresentativewantstoleavefromA,traveltoC,E,andF,andreturntoA.IfthefirstcitythatthesalesrepresentativetravelstomustbeE，whatistheminimumpossiblecostfortheentiretrip?(A)$13(B)$14(C)$16(D)$18(E)$20
单选题Two children, Bob and Mary, have piggy banks into which they deposit money earned from doing odd jobs. In a certain year, both Bob and Mary each deposited $5 on the first of every month into their respective piggy banks. If these were the only deposits made into the piggy banks during the year, on December 31 does Bob have more money in his piggy bank than Mary has in her piggy bank? (Assume no withdrawals) (1)On March 15 Bob had three times as much money in his piggy bank as Mary had in hers. (2)On June 15 Bob had twice as much money in his piggy bank as Mary had in hers. (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The chart above shows how Jeff spent his earnings for one year. How much did Jeff spend for clothing? (1)He spent $18 during the year on tennis balls. (2)He spent $190 during the year on recreation
单选题The school board has determined that it is necessary to reduce the number of teachers on the staff. Rather than deciding which teachers will be laid off on the basis of seniority, the school board plans to lay off the least effective teachers first.
The school board"s plan assumes that
单选题Lauraborrowed$240,interestfree,fromherparentstopayforhercollegeeducation.Ifshepaysbackpercentofthisamountquarterly,andhasalreadypaid$42.00,forhowmanymonthshasshebeenpayingbackherloan?
单选题If n is a prime number greater than 3, what is the remainder when n2 is divided by 12?
单选题If n is a positive integer, then n(n+1)(n+2) is (A) even only when n is even (B) even only when n is odd (C) odd whenever n is odd (D) divisible by 3 only when n is odd (E) divisible by 4 whenever n is even