8月17日的GRE考試馬上就要來了,同學(xué)們?cè)诳记凹訌?qiáng)一下復(fù)習(xí),多看一道題說不定就多拿點(diǎn)分?jǐn)?shù)哦。出國(guó)留學(xué)網(wǎng)GRE欄目為大家?guī)?016年8月17日GRE數(shù)學(xué)考試機(jī)經(jīng),預(yù)祝大家取得理想成績(jī)!
2016年8月17日GRE數(shù)學(xué)考試機(jī)經(jīng)
1. x is 7 more than y
A. Quantity A x
B. Quantity B y
C. Quantity A is greater.
D. Quantity B is greater.
E. The two quantities are equal.
F. The relationship cannot be determined from the information given.
答案:A
X比Y大7,那么不論如何A都比B數(shù)字大。
2. If 0 < st < 1, then which of the following ca be true?
A. s< 0 and t> 0
B. s< -1 and t< -1
C. s > -1 and t< -1
D. s > 1 and t<-1
E. s > 1 and t> 1
答案:C
st比0大比1小,則很有可能皆為負(fù)或者皆為正,但是都不能同時(shí)大于1或者小于-1,則只有C符合要求。
3. On segment WZ, if WY=21, XZ =26, and YZ is twice WX, what is the value of XY?
A. 5
B. 10
C. 11
D. 16
E. It cannot be determined from the information given
答案:D
列出兩個(gè)等式即可得出答案:WX+XY=21; 2WX+XY=26,最后計(jì)算可以得出,WX=5, XY=16。
4. If a certain sample of data has a mean of 20.0 and a standard deviation of 3.0, which of the following values are more than 2.5 standard deviations from the mean?
A. 12.0
B. 13.5
C. 17.0
D. 23.5
E. 28.5
答案:E
給出了平均數(shù)20和標(biāo)準(zhǔn)差3,那么要比20+2.5*3大的數(shù),只有28.5符合要求,則答案為E。
5. Which of the following could be the equation of the graph in the xy-plane shown below?
A. y = x2 + x - 60
B. y = x2 + x - 20
C. y = x2 + 3x - 60
D. y = 3x2 + x - 60
E. y = 3x2 + 3x - 60
答案:E
根據(jù)函數(shù)圖像,可將X=0時(shí), y=-60; X=4時(shí), y=0; X=-5時(shí), y=0三組數(shù)值帶入選項(xiàng)中,都符合條件的只有E,則等式E為正確答案。
GRE數(shù)學(xué)代入解題法介紹
所謂代入解題法,就是指反過來根據(jù)選項(xiàng)來反推題目解題的方法。簡(jiǎn)單來說,把選項(xiàng)代入計(jì)算驗(yàn)證的方法,就使用到了代入解題的思路。對(duì)于許多復(fù)雜的,正面解決需要大量計(jì)算的題目來說,代入解題法不僅不會(huì)消耗大家的考試時(shí)間,反而會(huì)節(jié)省下不少時(shí)間,大幅度提高解題速度,使用得當(dāng)甚至能帶來較大幅度的提分。
GRE機(jī)經(jīng)欄目推薦:
2016GRE全國(guó)成績(jī)查詢
2016年GRE考試時(shí)間表
2016年GRE考試真題及答案匯總