已选分类
管理学工商管理
单选题Like most other coastal towns in Norway, the town of Stavanger was quiet and peaceful until the early 1960"s, when it became Norway"s center for offshore oil exploration. Between then and now, violent crime and vandalism in Stavanger have greatly increased. Stavanger"s social problems probably resulted from the oil boom, since violent crime and vandalism have remained low in coastal towns in Norway that have had no oil boom.
Which of the following most accurately describes the method of reasoning employed in the argument?
单选题Forallrealnumbersν,theoperationν*isdefinedbytheequation.If(ν*)*=8,thenν=
单选题Whichofthefollowinginequalitiesisanalgebraicexpressionfortheshadedpartofthenumberlineabove?
单选题Bowls X and Y each contained exactly 2 jelly beans, each of which was either red or black, One of the jelly beans in bowl X was exchanged with one of the jelly beans in bowl Y. After the exchange, were both of the jelly beans in bowl X black? (1)Before the exchange, bowl X Contained 2 black jelly beans. (2)After the exchange, bowl Y contained 1 jelly bean of each color.
单选题A toy store regularly sells all stock at a discount of 20 percent to 40 percent. If an additional 25 percent were deducted from the discount price during a special sale, what would be the lowest possible price of a toy costing $16 before any discount? (A) $5.60 (B) $7.20 (C)$8.80 (D) $9.60 (E) $15.20
单选题If ⊙ denotes a mathematical operation, does x⊙y=y⊙x for all x and y? (1)For all z and y, x⊙y=2(x2+y2) (2)For all y, 0⊙y=2y2
单选题若各年环比增长速度保持不变，则各年增长量( )。 A．逐年增加 B．逐年减少 C．保持不变 D．无法作结论
单选题一组数据的分布为偏态分布时，用( )作为该组数据的概括性度量比较适宜。 A．众数 B．均值 C．最小值 D．最大值
单选题Neighboring landholders: Air pollution from the giant aluminum refinery that has been built next to our land is killing our plants.
Company spokesperson: The refinery is not to blame, since our study shows that the damage is due to insects and fungi. Which of the following, if true, most seriously weakens the conclusion drawn by the company spokesperson?
单选题All actors are exuberant people and all exuberant people are extroverts, but nevertheless it is true that some shy people are actors.
If the statements above are true, each of the following must also be true EXCEPT:
单选题Isthepositiveintegernequaltothesquareofaninteger?(1)Foreveryprimenumberp,ifpisadivisorofn,thensoisp2.(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．
单选题某企业职工的工资分为四组：(1)800元以下；(2)800～1000元；(3)1000～1500元；(4)1500元以上，则1500元以上的这组组中值应近似为( )元。 A．1500 B．1600 C．1750 D．2000
单选题A merchant paid $300 for a shipment of x identical calculators. The merchant used 2 of the calculators as demonstrators and sold each of the others for $5 more than the average (arithmetic mean) cost of the X calculators. If the total revenue from the sale of the calculators was $120 more than the cost of the shipment, how many calculators were in the shipment?
单选题Inthefigureabove,lineACrepresentsaseesawthatistouchinglevelgroundatpointA.IfBisthemidpointofAC,howfarabovethegroundispointC?(1)x=30(2)PointBis5feetabovetheground.
单选题Psychological research indicates that college hockey and football players are more quickly moved to hostility and aggression than are college athletes in noncontact sports such as swimming. But the researchers" conclusion—that contact sports encourage and teach participants to be hostile and aggressive—is untenable. The football and hockey players were probably more hostile and aggressive to start with than the simmers.
Which of the following, if true, would most strengthen the conclusion drawn by the psychological researchers?
单选题If x, y, and z are single-digit integers and 100(x)+1,000(y)+10(z)=N, what is the units' digit of the number N?
单选题右图中，若△ABC的面积为1，△AEC、△DEC、△BED的面积相等，则△AED的面积＝()。
单选题What is the least possible product of 4 different integers, each of which has a value between -5 and 10, inclusive?
单选题Ifmoneyisinvestedatrpercentinterest,compoundedannually,theamountoftheinvestmentwilldoubleinapproximatelyyears．IfPat'sparentsinvested$5,000inalong-termandthatpays8percentinterest,compoundedannually,whatwillbetheapproximatetotalamountoftheinvestment18yearslater,whenPatisreadyforcollege?(A)$20,000(B)$15,000(C)$12,000(D)$10,000(E)$9,000
单选题综合指数包括( )。 A．个体指数和总指数 B．定基指数和环比指数 C．平均数指数和平均指标指数 D．数量指数和质量指数