x2=81 Quantity A: x Quantity B: 8

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问题 x²=81
Quantity A: x
Quantity B: 8

选项 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 x²=81，那么x=±9，一个大于8，一个小于8，所以无法与8比较大小，选择D。

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本试题收录于： GRE QUANTITATIVE题库GRE分类

GRE QUANTITATIVE

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x2=81 Quantity A: x Quantity B: 8

GRE QUANTITATIVE

GRE

IntheMiddleAgesstudents______.Thekindofexamswherestudentsmustselectanswersare______.

Accordingtothepassage,thepresenttenseinEnglishis______.Accordingtothepassage,foreignlanguagestudentsshouldno

Byadoptingafewsimpletechniques,parentswhoreadtotheirchildrencangreatlyincreasetheirchildren’slanguagedevelopme

Therearemanyfactorswhichmayhaveaninfluenceonadultsandchildrenbeingabletoleadahealthylife.Nowadays,peopl

Idon’tthinkitadvisablethatTom______tothejobsincehehasnoexperience.

Anewsystemofqualitycontrolwas______toovercometheshortcomingsinthefirm’sproducts.

______thattheymayeventuallyreducetheamountoflaborneededonconstructionsitesby90percent.

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Fortheparabolay=x2-4x-12inthexy-plane,findthefollowing.(a)Thex-intercepts(b)They-intercept(c)Coordinatesoft

有一九宫格，第一行第一列是a，共有a，b，c三个元素，将a，b，c放入，问使每行每列都有a，b，c三个元素一共有多少种不同的排法?

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