中间图

Or

官方指南

OG20官方指南,建议同学们刷3遍。

第一遍做题了解题型和考点,第二遍精刷,第三遍集中解决疑难问题。建议考生第一遍刷题采用官方正版纸质书籍。

若遇到疑难问题,欢迎在此专区查阅解析,提供解析,参与题目讨论,与所有考生一起解决疑难问题。
热门讨论
  • 【数据充分DS】

    If k is an integer greater than 1, is k equal to 2r for some positive integer r ?(1) k is divisible by 26.(2) k is not divisible by any odd integer greater than 1.

  • 【数据充分DS】

    If w, x, y, and z are integers such that w/x and y/z are integers, is w/x  + y/z odd?(1) wx + yz is odd.(2) wz + xy is odd.

  • 【问题求解PS】

    When positive integer x is divided by 5, the remainder is 3; and when x is divided by 7, the remainder is 4.  When positive integer y is divided by 5, the remainder is 3; and when y is divided by 7, the remainder is 4.  If x > y, which of the following must be a factor of x - y? 

  • 【句子改错SC】

    Most of Portugal’s 250,000 university students boycotted classes in a one-day strike to protest a law that requires them to contribute $330 a year toward the cost of higher education, previously paying $7 per year.

  • 【句子改错SC】

    Critical-thinking instruction is predicted on two assumptions:  that there are clearly identifiable thinking skills that students can be taught to recognize and apply appropriately, and if recognized and applied, students will become more effective thinkers.

  • 【句子改错SC】

    The city has proposed a number of water treatment and conservation projects the cost of which raises water bills high enough so that even environmentalists are beginning to raise alarms. 

  • 【句子改错SC】

    Not only did the systematic clearing of forests in the United States create farmland (especially in the Northeast) and gave consumers relatively inexpensive houses and furniture, but it also caused erosion and very quickly deforested whole regions. 

  • 【句子改错SC】

    The number of plant and animal species that humans are known to have forced to extinction in the last half millennium is over 800.  

  • 【句子改错SC】

    Trans World Entertainment Corporation, which owns the Record Town and Saturday Matinee retail chains, announced that since sales of up to one-fourth of its stores are poor, they will be closed.

  • 【句子改错SC】

    Leaching, the recovery of copper from the drainage water of mines, as a method of the extraction of minerals, it was well established as early as the eighteenth century, but until about 25 years ago miners did not realize that bacteria take an active part in the process.  

最近更新
  • 【逻辑CR】

    Ozone in the stratosphere blocks deadly ultraviolet rays from the sun, but  chlorofluorocarbons (CFCs) in aerosols and other products have thinned this protective layer.  Evidence of this is the ozone hole that forms over the South Pole every Antarctic spring as  temperatures drop bel...

  • 【逻辑CR】

    Most geologists believe oil results from chemical transformations of hydrocarbons derived from organisms buried under ancient seas. Suppose, instead, that oil actually results from bacterial action on other complex hydrocarbons that are trapped within the earth. As is well known, the volume of these...

  • 【逻辑CR】

     Columnist: Metro City has a lower percentage of residents with humanities degrees than any other city of comparable size in our nation. Nationwide, university graduates generally earn more than people who are not university graduates, but those with humanities degrees typically earn less than ...

  • 【逻辑CR】

    Manufacturers sometimes discount the price of a product to retailers for a promotion period  when the product is advertised to consumers. Such promotions often result in a dramatic  increase in amount of product sold by the manufacturers to retailers. Nevertheless, the  manufacturers ...

  • 【逻辑CR】

    Scientist: In an experiment, dogs had access to a handle they could pull to release food into a nearby enclosure that contained a familiar dog and nothing else, contained an unfamiliar dog and nothing else, or was empty. The dogs typically released more food to the familiar dog than to the unfamilia...

  • 手机注册
  • 邮箱注册
登录>







关闭图标

标题图

  • 图标

    知识库学习

    GMAT语法、逻辑、阅读、数学各单项备考知识点学习及测验
  • 图标

    在线做题

    包含GMAT各单项必考知识点题目、OG/PREP/GWD/雷哥讲义题目、难度650/680/700/730题库题目练习及题目解析
  • 图标

    在线模考

    语文套题/数学套题/全套仿真模考,包含GWD/PERP/精选模考等上百套套题模考
  • 图标

    在线测评

    适合5种不同基础的GMAT学员,测评后可自动出具分数报告及复习计划指导
  • 图标

    资料下载

    GMAT必备备考资料下载、鸡精下载、课程课件等免费下载
  • 图标

    课程学习

    注册会员后,可在GMAT课程区,选择免费直播课程及公开课程进行在线学习
×
请你选择你要查看的模考成绩单
立即开通 暂不开通
加载图片
网络异常