SAT考试句子改错必看经典练习题5

在备考过程中，很多内容都是可以通用的，所以我们在练习时也要掌握一定的技巧，今天小编就给大家整理了这篇练习题，在坦途网SAT考试频道还有很多相关的内容和考试资讯，先想要有更多了解的的同学，可以去看看哦！现在我们就想来看一下这篇文章吧！

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

The sum of the positive odd integers less than 50 issubtracted from the sum of the positive evenintegers less than or equal to 50. What is theresulting difference?

(A) 0

(B) 25

(C) 50

(D) 100

(E) 200

答案：B

解析：

The sum of the positive odd integers less than 50 is1 + 3 + 5 + ... + 45 + 47 + 49, and the sum of thepositive even integers less than or equal to 50 is 2 + 4 + 6 + ... + 46 + 48 + 50. When the first sum issubtracted from the second, the terms can be regrouped to form (2-1)+(4-3) + ... + (48-47) + (50-49), which is just 1 + 1 + 1 + ... + 1, where there are 25 ones. Therefore, the correctanswer is 25.

以上就是小编为大家整理的全部内容了，希望能够帮助大家顺利通过考试，取得好的成绩，我们在做练习的时候，可以把认为不错的句子摘抄下来，运用在写作中，做为写作的徐才积累，一举两得。小编还会不断为大家更新SAT考试时间，希望大家都会考出自己理想的成绩！