已选分类
管理学
单选题The total cost for Company X to produce a batch of tools is $10,000 plus $3 per tool. Each tool sells for $8. The gross profit earned from producing and selling these tools is the total income from sales minus the total production cost. If a batch of 20,000 tools is produced and sold, then Company X's gross profit per tool is
单选题Is a+b+C+d equal to 4? (1)a, b, c, and d are each positive. (2)The product abcd equals 1.
单选题 Questions 4—5 are based on the following:
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At 9 a.m, a hiker was due south of point P. What direction was point P from her position at noon? (1)From 9 a.m until 11 a.m she walked due east at 2 miles per hour, and from 11 a. m until noon, she walked due north at 3 miles per hour. (2)At noon, she is exactly 4.5 miles from point P.
单选题IfMarksavedanaverage(arithmeticmean)of$80perweekfor3consecutiveweeks,howmuchdidhesavethesecondweek?(1)TheaverageamountthatMarksavedperweekforthefirst2weekswas$60.(2)TheamountthatMarksavedthefirstweekwastheamounthesavedthesecondweekandtheamounthesavedthethirdWeek.(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How many two-element subsets of 1, 2, 3, 4are there that do not contain the pair of elements 2 and 4? (A) One (B) TWO (C) Four (D) Five (E) Six
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Car X and car Y ran a 500-kilometer race, what was the average speed of car X? (1)Car X completed the race in 6 hours and 40 minutes. (2)Car Y, at an average speed of 100 kilometers per hour, completed the race 1 hour and 40 minutes before car X crossed the finish line.
单选题ThediagramaboveshowsthevariouspathsalongwhichamousecantravelfrompointX,whereitisreleased,topointY,whereitisrewardedwithafoodpellet.HowmanydifferentpathsfromXtoYcanthemousetakeifitgoesdirectlyfromXtoYwithoutretracinganypointalongapath?(A)6(B)7(C)12(D)14(E)17
单选题Playing eighteenth-century music on the instruments of that period provides valuable information about how the music originally sounded. Eighteenth-century instruments cannot be played without being restored, however, and restoring such an instrument destroys all of the information that researchers could obtain from it about eighteenth-century instrument-making techniques.
If the statements above are true, which of the following must be true on the basis of them?
单选题What is the greatest possible length of a positive integer less than 1,000? (A) 10 (B) 9 (C) 8 (D) 7 (E) 6
单选题What percent of the employees of Company X are technicians? (1)Exactly 40 percent of the men and 55 percent of the women employed by Company X are technicians. (2)At Company X, the ratio of the number of technicians to the number of nontechnicians is 9 to 11.
单选题ThediagramaboveshowsthevariouspathsalongwhichamousecantravelfrompointX,whereitisreleased,topointY,whereitisrewardedwithafoodpellet.HowmanydifferentpathsfromXtoYcanthemousetakeifitgoesdirectlyfromXtoYwithoutretracinganypointalongapath?
单选题PatwillwalkfromintersectionXtointersectionYalongaroutethatisconfinedtothesquaregridoffourstreetsandthreeavenuesshowninthemapabove.HowmanyroutesfromXtoYcanPattakethathavetheminimumpossiblelength?(A)Six(B)Eight(C)Ten(D)Fourteen(E)Sixteen
单选题Ounce for ounce, blends of different artificial sweeteners match any individual artificial sweetener in sweetening power. When used to sweeten food, blends greatly decrease the likelihood that consumers will exceed acceptable daily intakes for individual sweeteners. Blends should therefore be used, rather than single sweeteners alone, since blends are clearly more healthful, yet equally effective.
The argument above depends on which of the following assumptions?
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. (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Which of the following best completes the passage below?
The unemployment rate in the United States fell from 7.5 percent in 1981 to 6.9 percent in 1986. It cannot, however, be properly concluded from these statistics that the number of unemployed in 1986 was lower than it had been in 1981 because______
单选题Onarecenttrip,Cindydrovehercar290miles,roundedtothenearest10miles,andused12gallonsofgasoline,roundedtothenearestgallon.TheactualnumberofmilespergallonthatCindy'scargotonthistripmusthavebeenbetween
单选题Inthefigureabove,howmanyofthepointsonlinesegmentPQhavecoordinatesthatarebothintegers?
单选题If n and p are different positive prime numbers, which of the integers n4, p2, and np has (have) exactly 4 positive divisors?