【SAT每日一题】2013年4月4日SAT考试官方每日一题

2013-04-04 17:40:00 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4日SAT考试官方每日一题。

好评率:100%

闫新民顾问 高级专家 (了解顾问评级) [顶尖签证专家] [超级升学导师] [高级职业导师] 办理国家：美国 免费留学方案 签约折扣预约 查看联系方式
好评率:0%

张佩瑛顾问 资深顾问 (了解顾问评级) [签证方案及材料专家] [高级升学导师] [金牌文书翻译] [高级职业导师] 办理国家：英国澳大利亚新西兰中国香港 免费留学方案 签约折扣预约 查看联系方式
好评率:86%

廖艳霞顾问 高级专家 (了解顾问评级) [高级签证顾问] [资深院校咨询顾问] [资深职业规划师] 办理国家：加拿大 免费留学方案 签约折扣预约 查看联系方式

On the line above, if A B less than B C less than C D less than D E , which of the following must be true?

A. A C less than C D

B. A C less than C E

C. A D less than C E

D. A D less than D E

E. B D less than D E

正确答案:B

解析:

You can rewrite A C as A B + B C , A D as AB + BC + CD , C E as C D + D E , and B D as B C + C D , and then consider the five answer choices.

The first answer choice is equivalent to A B + B C is less than C D . You know that A B is less than C D and that B C is also less than C D , but the sum of A B and B C might not be less than C D . Since the question asks which statement must be true, the first answer choice is not the correct answer.

The second answer choice is equivalent to A B + B C is less than C D + D E . This statement must be true, because A B is less than C D and B C is less than D E . Although there is no need to consider the other answer choices once you see that the second answer choice must be true, each of the remaining choices could be rewritten in the same way and you could see that they need not be true.