【SAT每日一题】2013年4月22日SAT考试官方每日一题

2013-04-22 13:20:00 来源: SAT 责编：楷维留学指南

为了方便广大SAT考生更好的复习，楷维留学指南为大家整理了SAT官方每日一题，以供各位考生考试复习参考，希望对考生复习有所帮助。愿大家都能取得好成绩，更多有关留学考试的讯息敬请关注楷维留学指南！以下内容为2013年4月22日SAT考试官方每日一题。

好评率:67%

陈洁顾问 高级专家 (了解顾问评级) [包装策划顶级专家] [超级升学导师] [顶尖签证专家] [职业发展专家] 办理国家：美国英国加拿大中国香港 免费留学方案 签约折扣预约 查看联系方式
好评率:0%

孙革洪顾问 行业元老 (了解顾问评级) [包装与形象设计大师] [高级升学导师] [金牌文书翻译] [高级职业导师] 办理国家：美国英国澳大利亚加拿大新加坡中国香港 免费留学方案 签约折扣预约 查看联系方式
好评率:0%

张嫚顾问 高级专家 (了解顾问评级) [高级升学导师] [高级职业导师] [包装与形象设计大师] 办理国家：英国日本韩国新加坡荷兰中国香港 免费留学方案 签约折扣预约 查看联系方式

Read the following SAT test question and then click on a button to select your answer.

Which of the following statements must be true of the lengths of the segments on line above?

Roman number 1 . A B plus C D equals A D

Roman numeral 2 . A B plus B C equals A D minus C D

Roman numeral 3 . A C minus A B equals A D minus C D

A. Roman numeral 1 only

B. Roman numeral 2 only

C. Roman numeral 3 only

D. Roman numeral 1 and Roman numeral 2 only

E. Roman numeral 1 , Roman numeral 2 , and Roman numeral 3

正确答案:B

解析:

Consider each statement separately. For example, consider statement Roman numeral 1 , A B plus C D equals A D . From the figure, you can see that segment A D is made up of the segments A B , B C , and C D . This tells you that cannot equal A D , since B C cannot equal zero. Statement is not true.

Consider statement Roman numeral 2 , A B plus B C equals A D minus C D . Since is between and , it follows that A B plus B C equals A C . Since is between and , it follows that A C plus C D equals A D . Therefore, A D minus C D equals A C . Since both and equal A C , they are equal to each other. Statement Roman numeral 2 is true.

Consider statement Roman numeral 3 , A C minus A B equals A D minus C D . The left side of the equation, , is equivalent to B C . The right side of the equation, , is equivalent to A C . Since A B cannot equal zero, B C is not equal to A C . Statement is not true.