已选分类
管理学工商管理
单选题In 1990 all of the people who applied for a job at Evco also applied for a job at Radeco, and Evco and Radeco each offered jobs to half of these applicants. Therefore, every one of these applicants must have been offered a job in 1990.
The argument above is based on which of the following assumptions about these job applicants?
单选题Scientific research that involves international collaboration has produced papers of greater influence, as measured by the number of times a paper is cited in subsequent papers, than has research without any collaboration. Papers that result from international collaboration are cited an average of seven times, whereas papers with single authors are cited only three times on average. This difference shows that research projects conducted by international research teams are of greater importance than those conducted by single researchers.
Which one of the following is an assumption on which the argument depends?
单选题In several nineteenth-century paintings the marble buildings of the Acropolis in Athens are portrayed as being reddish, but the buildings do not now appear reddish. The marble"s natural color cannot have changed since the nineteenth century, so the paintings must not be showing the color of the buildings as they actually appeared.
Which of the following, if true, most seriously undermines the argument above?
单选题3.2□△6 If □ and △ each represent single digits in the decimal above, what digit does □ represent? (1)When the decimal is rounded to the nearest tenth, 3.2 is the result. (2)When the decimal is rounded to the nearest hundredth, 3.24 is the result.
单选题Pam and Ed are in a line to purchase tickets. How many people are in the line? (1)There are 20 people behind Pare and 30 people in front of Ed. (2)There are 5 people between Pam and Ed.
单选题A ladder 25 feet long is leaning against a wall that is perpendicular to level ground. The bottom of the ladder is 7 feet from the base of the wall. If the top of the ladder slips down 4 feet, how many feet will the bottom of the ladder slip?
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. (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Ashipmentofbannerscontainsbannersoftwodifferentshapes,triangularandsquare,andtwodifferentcolors,redandgreen.Inaparticularshipment26%ofthebannersaresquareand35%ofthebannersarered.If60%oftheredbannersintheshipmentaresquare,whatistheratioofredtriangularbannerstogreentriangularbanners?
单选题The inside dimensions of a rectangular wooden box are 6 inches by 8 inches by 10 inches. A cylindrical cannister is to be placed inside the box so that it stands upright when the closed box rests on one of its six faces. Of all such cannisters that could be used, what is the radius, in inches, of the one that has maximum volume?
单选题Amy's graduate seminar in history meets once each week, on Thursday afternoons. If it met every Thursday in the month of May, how many times did the seminar meet that month? (1)There were five Wednesdays in the month. (2)The seventeenth of May was a Friday.
单选题Of the science books in a certain supply room, 50 are on botany, 65 are on zoology, 90 are on physics, 50 are on geology, and 110 are on chemistry. If science books are removed randomly from the supply room, how many must be removed to ensure that 80 of the books removed are on the same science?
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.
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? (A) 90 (B) 180 (C) 270 (D) 500 (E) 1,000
单选题Ifnisaninteger,isaninteger?(1)isaninteger.(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A breakfast that consists of 1 ounce of corn puffs and 8 ounces of fruit X provides 257 calories. When 8 ounces of fruit Y is substituted for the 8 ounces of fruit X, the total number of calories is reduced to 185. If fruit X provides 1.8 times as many calories as fruit Y, how many calories does 8 ounces of fruit Y alone provide? (A) 11.25 (B) 72 (C) 90 (D) 95 (E) 129.6
单选题If,then
单选题Pam and Ed are in a line to purchase tickets. How many people are in the line? (1)There are 20 people behind Pare and 30 people in front of Ed. (2)There are 5 people between Pam and Ed. (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Any person who drops out of high school will be unemployed unless he or she finds a low-paying job or has relatives with good business connections.
单选题When a group of children who have been watching television programs that include acts of violence is sent to play with a group of children who have been watching programs that do not include acts of violence, the children who have been watching violent programs commit a much greater number of violent acts in their play than do the children who have been watching nonviolent programs. Therefore, children at play can be prevented from committing violent acts by not being allowed to watch violence on television.
The argument in the passage assumes which one of the following?
单选题Which of the following CANNOT be zero? Ⅰ. The sum of 7 consecutive integers Ⅱ. The sum of 10 consecutive even integers Ⅲ. The product of 13 consecutive integers (A) Ⅱonly． (B) ⅠandⅡonly (C) ⅠandⅢonly (D) ⅡandⅢonly (E) Ⅰ, Ⅱ, andⅢ