GRE数学170满分怎么来？先看最新10月12日数学机经精准预测

10月可以说是GRE考试最为繁忙的月份之一，本月共有3场考试，而作为国庆7天长假后的第一场考试，相信大家一定也会在假期中进行充分准备。既然复习时间充足，那就更要好好下功夫研究一下最新的GRE考前预测机经！10月12日最新GRE数学机经提前发布，高命中率精准预测，助你轻松准备搞定GRE数学满分！考前冲刺从看最新预测机经开始！

10月12日其他题型机经预测：阅读/填空/作文 请走这里

题目：

1.

Quantity A: x

Quantity B: y

A. Quantity A is greater.

B. Quantity B is greater.

C. The two quantities are equal.

D. The relationship cannot be determined from the information given.

答案：D

解析：只从PQ=RT而不清楚QR的长度，是无法判断x和y度数大小的，因此选D。

2. Jim exercised last Monday at 6:00 in the evening and then exercised every thrid day after that. For example, after last Monday, he exercised the following Thursday and then the Sunday following that. How many days after last Monday will be the next Monday he exercises?

答案：21

解析：周一锻炼，之后每隔3天锻炼，问下次锻炼为周一时与第一次周一间隔多少天，穷举法1,4,7,3,6,2,5,1，当中间隔三周，因此为21天。

3. The population of Country X for 1980 was p. The population of Country X increased by 3.8 percent in each of the next two years.

Quantity A: The population of Country X for 1982.

Quantity B: 1.076p

A. Quantity A is greater.

B. Quantity B is greater.

C. The two quantities are equal.

D. The relationship cannot be determined from the information given.

答案：A

解析：Quantity A计算公式为 p(1+3.8%)^2, 得出结果约为1.077p，A大于B，所以选A。

4. If x < y, which of the following must be true?

A. 2x < y

B. 2x > y

C. x^2 < y^2

D. 2x-y < y

E. 2x-y < 2xy

答案：D

解析：D项可变形为2x < 2y, 即题干的x < y, 是唯一正确解，其它等式缺乏条件，无法成立。

5. 1/2 < r < 1

Quantity A: 2r

Quantity B: 1/r

A. Quantity A is greater.

B. Quantity B is greater.

C. The two quantities are equal.

D. The relationship cannot be determined from the information given.

答案：D

解析：如果r=2/3, 则A=4/3 B=1.5, AB。因此存在不同结果无法判断，所以选D。

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