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from beatthegmat.com http://www.beatthegmat.com/first-time-660-second-time-680-this-time-750-q50-v41-t8416.html
以下是原帖，后面的跟帖简直让人没法看下去！就不贴在这了！
希望大家能守好我们CD的这片阵地！即便是你最近最好的外国朋友，也不要忘记自己还有千万的中国同胞啊！！！
First time 660 (Q42, V39), second time 680 (Q43, V40), this time 750 (Q50, V41) 
I am Korean. In Sep and Nov 2006, I took GMAT twice in Korea and got score 660 and 680. I was so depressed because I need a perfect score (≥700) to apply MBA from Korea.
In May 2007, I came to China for working reason and made many Chinese friends there. I was shocked by the fact that many of them scored 720 or even higher. Because of the language barrier, three months later I came to understand the reason: their ability in math is powerful , many people score 49-51 in math! Later, a friend told me to study the Chinese people's GMAT Bible "JJ". I was so confused but finally came to understand what is "JJ".
Hundreds of Chinese take GMAT around the world every day. After the test, some people will write down the questions they met in the test as soon as possible and as much as possible to provide to others who will take the test soon. Yes! They are very united in TOEFL,GRE and GMAT! In China, it is call" You planted a tree for me to enjoy the cool, and I will plant another tree for the man behind me!"Chinese has EXPERIENCED GRE and GMAT for many years and they are now absolutely EXPERT in GRE and GMAT.
One of my close Chinese friends who got a score 780 last year told me a secret: In actual GMAT exam, there is a very large question POOL (about 40,000 -60,000 questions).each month about 1200 questions are regularly selected from the POOL, and then about 75 percent will be replaced next month. Then if there is one question in last month GMAT test, you still have a chance of 25% to face it this month and still about 6% next month.
The Most important is next!!
Since the GMAT question pool is the same all over the world each month, you get a chance about 6% to meet the same question I meet this month. OK, if 100 person each write down 10 questions he met in this month, then to each question (for example NO.966 of the monthly pool),the possibility it is included in the monthly "JJ" is :1- (1-10/1200) ^100≈56.88% !!!
Finally, he gave me the professional "JJ" from Jul 07-Dec 07 (AP)and Jan 08(C.Today, I meet 17 questions the same in the "JJ" above. Especially in my Math test, I meet 6 questions in the "JJ" (AP)and 6 in the "JJ" last month(C!! Of the 12 questions above, six is DS. Of course, I saved much time and passed the test easily.
I have asked a Chinese friend before why GMAC or ETS do not investigate Chinese? He surprised me: In Commonwealth of Nations, nobody dares to make "JJ" because the government or ETS is easy to survey and will cancel the maker's MBA qualification. But in China, the government does not care much about that.
Now, I feel that although I benefited a lot from "JJ" i still feel so sorry...
In addition, very important: I have a specific statistics of GMAT scores (over 1,200 individual data analysis), but I can not affix it in this article or I am not good at computer???  If you are interested and write EMAIL to me, I will Email you. I have benefited much from here and I will do my best to help everybody!!
My email: DELETED
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发表于 2010-9-9 09:24:39
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