Multiple Choice 1. Equilibrium a. is a concept unique to economics. b. always occurs where supply equals demand. C. results when opposing forces fail to cancel each other out. d. indicates balance. e. all of the above

Part i Vocabulary Structure(25%) Directions: There are 25 incomplete sentences here, each with a blank. You are required to complete each one by choosing the most appropriate answer from the 4 choices marked A.B.c and D 1. Molly watching football matche T B. interested C. ke

02-01-05一级考试选择题(J) 1、智能机器人不属于计算机在()方面的应用。 A)科学计算 B)计算机辅助制造 C)过程控制 D)人工智能 2、软盘上所存放的数据,在下列()情况下数据可能丢失。 A)通过海关的X射线监视仪 B)放在盒内一年没有使用 C)置于强磁场附近 D)放于气温在-10℃的屋内 3、CPU执行人所指定的最小任务为() A)程序B)指令C)语句D)地址

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一、填空题(每空1分,共10分) 1.100000,1《000000r0f010080c2,3;《,80;2.高低;3.低,并联使用; 4.Qn+1=D;5.0;6.施密特;

1.二重积分的计算 将二重积分(x,y)toh化为不同顺序的累次积分: (1)D由x轴与x2+y2=r2(y>0)所围成 (2)D由y=x,x=2及y=-(x>0)所围成 (3)D由y=x3,y=2x3,y=1和y=2围成

1. Asymmetric auctions Consider an interdependent-values auction with two bidders, each of whom observes an i.i.d uniform signal s; E [ 0, 1]. Bidder i' s valuation for the object is equal to

定义称随机变量X,Y相互独立,若对任意a