http://flashfabrica.com/f_learning/brain/brain.html
玩法： click start, remember the number showed on screen, wait 3 seconds,
fill in the circles. There are 10 questions each time. See how many score
you can get.
俺周围的人最多能7次正确，俺能9次。看谁能超越俺，告诉我你得多少分俺就知道了!
Good luck!
