日期：2007-09-24 编者按：日前，继美国教育考试服务中心（ETS）宣布即将在2006年5月在中国大陆推出新托福考试的消息后，ETS又其官方网站正式公布，将在2006年10月首次推出经过改革后的新GRE常规测试。新GRE常规测试是ETS在美国研究生院为代表的教育界的指导下，经四年研究而完成的，是GR... 阅读全文>>

日期：2007-09-24 SYMBOL MEANING = is equal to is not equal to is approximately equal to ＞ is greater than is greater than or equal to ＜ is less than is less than or equal to 根号 square root 0.888888 the repeating decimal r s't r degrees s minutes t seconds ?angle... 阅读全文>>

日期：2007-09-24 一、高中知识 各种三角诱导公式，和，差，倍，半公式与和差化积，积化和差公式，平面解析几何。 说明：Cracking the GRE Math Test里面第一章就是复习高中知识，我看内容基本差不多了，大家也就不用另外找书复习了。 二、数学分析 极限，连续的概念，单变量微积分（求导... 阅读全文>>

日期：2007-09-24 11. A,B,C,D,E,F排在1,2,3,4,5,6六个位置上,问A不在1, B不在2, C不在3的情况下,共有多少种排法? (A) 720 (B) 450 (C) 180 (D) 216 (E) 320 12. 一直线L过点A(5,0), B(0,2), 坐标原点为O, 点P(X,Y)为三角形OAB中一点, 问:YX的概率是多少? (A) 1/4 (B) 3/8 (C) 1/2 (D) 5/... 阅读全文>>

日期：2007-09-24 6. 符合 X^2+Y^2=100的整数解共有多少对? 7. Right triangle PQR is to be constructed in the xy-plane so that the right angle is at P and PR is parrallel to the x-axis. The x-and y-coordinates of P,Q,and Rare to be integers that satisfy the inequalities... 阅读全文>>

日期：2007-09-24 6. 符合 X^2+Y^2=100的整数解共有多少对? 7. Right triangle PQR is to be constructed in the xy-plane so that the right angle is at P and PR is parrallel to the x-axis. The x-and y-coordinates of P,Q,and Rare to be integers that satisfy the inequalities... 阅读全文>>

日期：2007-09-24 1. A,B,C,D,E五个人的薪水的median是20000,range不超过50000,其中A,B,C的薪水分别是20000, 40000, 50000,问五个人薪水的平均值可能是多少? (A) 20000 (B) 32000 (C) 18000 (D) 23000 (E) 31000 2. 一个样本在一个标准方差内的概率是0.68,两个标准方差内的概率是0.95. 一... 阅读全文>>

日期：2007-09-24 1.数学满分=认真+不轻视。这是GRE数学复习所应当遵循的头号准则，下面一切所说的，都是基于这个原则。 2.我想不管是基于什么想法，在最后20天，应当开始复习数学了。不轻视数学，否则拿满分还是比较难的事情。 3.应当把数学的基本词汇掌握住，否则做题没有用处。数学真... 阅读全文>>

日期：2007-09-24 1、mode（众数） 一堆数中出现频率最高的一个或几个数，例如：mode of 1，1，1，2，3，0，0，0，5 is 1 and 0. 2、range（值域） 一堆数中最大和最小数之差，例如：range of 1，1，2，3，5 is 5-1=4 3、mean（平均数） arithmatic mean（算术平均数），geometric mean... 阅读全文>>

日期：2007-09-24 1.数学满分=认真+不轻视。这是GRE数学复习所应当遵循的头号准则，下面一切所说的，都是基于这个原则。 2.我想不管是基于什么想法，在最后20天，应当开始复习数学了。不轻视数学，否则拿满分还是比较难的事情。 3.应当把数学的基本词汇掌握住，否则做题没有用处。数学真... 阅读全文>>

日期：2007-09-24 6. Questions 18-24 The population of a small country is organized into five clans-N, O, P, S, and T. Each year exactly three of the five clans participate in the annual harvest ceremonies. The rules specifying the order of participation of the clans... 阅读全文>>

日期：2007-09-24 5. Questions 20-24 Prior to this year's annual promotion review, the staff of a law firm consisted of partners Harrison and Rafael, associate Olivos, and assistants Ganz, Johnson, Lowry, Stefano, Turner, and Wilford. During each annual review, each... 阅读全文>>

日期：2007-09-24 4. Questions 13-18 In a game, words (real or nonsensical) consist of any combination of at least four letters of the English alphabet. Any sentence consists of exactly five words and satisfies the following conditions: The five words are written fro... 阅读全文>>

日期：2007-09-24 3. Questions 6-12 A square parking lot has exactly eight lights-numbered 1 through 8-situated along its perimeter as diagramed below: North 1------------2------------３ | | | | | | West 8 4 East | | | | | | 7------------6------------5 South The lot... 阅读全文>>

日期：2007-09-24 2. Questions 12-19 A housing committee will consist of exactly five representatives, one of whom will be its chairperson. The representatives will be selected from among a group of five tenants--F, G, J, K, and M--and a group of four homeowners--P,... 阅读全文>>

日期：2007-09-24 第四讲 规则题 1. Questions 12-17 A hobbyist is stocking her aquarium with exactly three fish of different types and with exactly two species of paints. The only fish under consideration are a G , an H , a J , a K and an L and the only kinds of plant... 阅读全文>>

日期：2007-09-24 7. Questions 18-24 The organisms W, X, Y, and Z respond to the antibiotics ferromycin, ganocyclene, and heptocillin in a manner consistent with the following: Each of the organisms responds to at least one of the antibiotics. No organism responds to... 阅读全文>>

日期：2007-09-24 6. Questions 13-18 A breeder has ten birds: Kind Male Female Goldfinches H J, K Lovebirds M N Parakeets Q, R, S T, W The breeder exhibits pairs of birds consisting of one male and one female of the same kind. At most two pairs can be exhibited at a... 阅读全文>>

日期：2007-09-24 5. Questions 6-12 Six reviewers-Frank, George, Hilda, Jackie, Karl, and Lena-will review four movies-Mystery, Retreat, Seasonings, and Wolves-according to the following conditions: Each reviewer reviews exactly one movie, and each movie is reviewed... 阅读全文>>

日期：2007-09-24 4. Questions 1-6 Petworld has exactly fourteen animals (three gerbils, three hamsters, three lizards, five snakes) that are kept in four separate cages (W, X, Y, Z) according to the following conditions: Each cage contains exactly two, four, or six a... 阅读全文>>