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 UID223368 帖子251 主题45 注册时间2011-7-11 最后登录2014-7-21 
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8#
 
 发表于 2011-7-20 06:44 
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| I am in the camp that believes L1 is made to be easy to get people in the program, because the jump in difficulty from 1 to 2 is craaazzy. 
 So, you pass L1, and will definitely attempt L2 at least once, and likely twice.
 The serious people move on, and the rest provide money fodder.
 
 Not a bad business model..
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