到新GRE数学样题及解析.doc

20到新数学样题及解析 　　GRE? Revised General Test: Quantitative Reasoning Sample Questions 　　Figures 　　This document includes figures, which appear on screen. Following each figure on screen is 　　text describing that figure. Readers using visual presentations of the figures may choose to skip 　　parts of the text describing the figure that begin with “Begin skippable figure description” and 　　end with “End skippable figure description.” 　　Mathematical Equations and Expressions 　　This document includes mathematical equations and expressions. Some of the 　　mathematical equations and expressions are presented as graphics. In cases where a 　　mathematical equation or expression is presented as a graphic, a verbal presentation is also given 　　and the verbal presentation comes directly after the graphic presentation. The verbal 　　presentation is in green font to assist readers in telling the two presentation‐modes 　　apart. Readers using audio alone can safely ignore the graphical presentations, and readers 　　using visual presentations may ignore the verbal presentations. 　　Introduction 　　The revised Quantitative Reasoning section contains four types of questions: 　　Multiple‐choice Questions — Select One Answer Choice 　　Multiple‐choice Questions — Select One or More Answer Choices 　　Numeric Entry Questions 　　Quantitative Comparison Questions 　　Each question appears either independently as a discrete question or as part of a set of 　　questions called a Data Interpretation set. All of the questions in a Data Interpretation set are 　　based on the same data presented in tables, graphs, or other displays of data. Below are 　　descriptions, directions, and samples of each type of question. 　　Multiple‐Choice Questions — Select One Answer Choice 　　These questions are multiple‐choice questions that ask you to select only one answer 　　choice from a list of five choices. 　　Sample Questions 　　Directions: Select a single answer choice. 　　Sample question 1 below is based on figure 1. 　　Figure 1 　　Be