足球竞彩网2019NIAN12YUE20RICHANGSHUGRESHUXUEYUCEGONGBU,XIANGJINNEIRONGBAOHANDUI12YUE20RIGRESHUXUEGEDAGAOPINLVKAOSHIDIANTIXINGDESHIJIJIEDUHEDATISILUFENXI,BAOZHENGXUESHENGMEIYOUJIANYISHUXUEYIBUFENCHUXIANYIWAIDIUFEN,YUANMANQUDEGAOFENSHUKAOMANFEN!

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2019年12月20日GRE數學預測高分幫手 沖刺170你也能做到  GRE備考  第1張

題目

1. Points R, S, and T lie on a number line, where S is between R and T. The distance between R and S is 6, and the distance between R and T is 15.

Quantity A:the distance between the midpoints of lines segments RS and ST

Quantity B:the distance between S and T

足球竞彩网A. Quantity A is greater.

B. Quantity B is greater.

足球竞彩网C. The two quantities are equal.

足球竞彩网D. The relationship cannot be determined from the information given.

ZHENGQUEDAAN:B

TIMUFENXI:Quantity ACHANGDUANWEIRTDEYIBAN,7.5,Quantity BCHANGDUANWEI15-6=9,YINERXUANB。

2. x, y, and z are the lengths of the sides of a triangle.

Quantity A:x+y+z

足球竞彩网Quantity B:2*z

足球竞彩网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.

ZHENGQUEDAAN:A

足球竞彩网TIMUFENXI:LIANGCEZONGHECHAOGUODISANBIAN,x+y>z. YINCIx+y+z>2*z

2019年12月20日GRE數學預測高分幫手 沖刺170你也能做到  GRE備考  第2張

3. Rectangle R has length 30 and width 10, and square S has length 5. The perimeter of S is what fraction of the perimeter of R ? ___/___

ZHENGQUEDAAN:20,80

足球竞彩网TIMUFENXI:RZHIJINGWEI80,SZHIJINGWEI20,YIZHAOTIMUGUIDING,QIANBIANTIANXIE20,HOUBIANTIANXIE80。YIJUOGBIAOSHU,XUESHENGJIARUYUEFENCHENG1/4DOUSHIQIADANGDE。

4. 1, –3, 4, 1, –3, 4, 1, –3, 4,..

足球竞彩网In the sequence above, the first 3 terms repeat without end. What is the sum of the terms of the sequence from the 150th term to the 154th term?

ZHENGQUEDAAN:7

足球竞彩网TIMUFENXI:TIMUSHUOQIANSANXIANGXUNHUAI, YINCI1,-3, 4 SHIYIGEXUNHUANXITONG。150thQIAHAOSHI4,SUIHOUYICILEITUI,150thDAO154thDEHE WEI4+ 1+(-3)+4+1=7

5. 2019年12月20日GRE數學預測高分幫手 沖刺170你也能做到  GRE備考  第3張

足球竞彩网For which of the following bird species is the standard deviation of the numbers of sightings shown for the four seasons least

足球竞彩网A. Cardinal

B. Junco

C. Robin

D. Sparrow

E. Wren

ZHENGQUEDAAN:D

TIMUFENXI:CITIDATIGUANJIANDIANYOU2GE,ZUIXIANXUESHENGBIXULEJIEstandard deviationYEJIUSHISHUOBIAOZHUNPIANCHADEDINGYI。CIZHIBIAOZHUNPIANCHAJISUANFANGFABIJIAOFANZA,QIANGZHICESUANHUIHUAXIAOHENDUOSHIJIAN,YINERBIXUSHENGSHISHENGLIJIEFA,DAHUOERNENGGOU GUANCHAMEIZUXINXIZHAODAOSIGEXINXICHABIEZUISHAODEYIZU,JISHIZHENGQUEDAAN,YINERXUAND。

2019年12月20日GRE數學預測高分幫手 沖刺170你也能做到  GRE備考  第4張

GREYUCEWEIXIAOZHANGREPINDAOLANMUDUJIADAILIYUANCHUANGSHEJIgre.zhan.com,ZHUANJIEYAOYIWANGYELIANJIEFANGSHIBIAOMINGWENZHONGCHUZI,BINGLINGFUCISHENGMING,BURANJIANGZHUIZEFALVYIJU。

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