I did once. The return is not good as it seems. But

来源: qiaoshe 于 2012-03-28 14:24:53 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (65 bytes)

you can get at least 20% return. I'm not doing it anymore.

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• Ｉｆ　ｙｏｕ　ｌｕｃｋｙ　ｅｎｏｕｇｈ，　ｙｏｕ　ｇｅｔ　ｔｈｅ　ｈｏｕｓｅ　 -little.me- ♀ 给 little.me 发送悄悄话 (47 bytes) () 03/28/2012 postreply 14:42:30

• it is hard nowadays. You need to spend a lot of time to check ou -qiaoshe- ♀ 给 qiaoshe 发送悄悄话 qiaoshe 的博客首页 (399 bytes) () 03/28/2012 postreply 15:12:51

• you need have more sophisticated research tool -little.me- ♀ 给 little.me 发送悄悄话 (0 bytes) () 03/28/2012 postreply 16:33:36

• what tool do you use? -qiaoshe- ♀ 给 qiaoshe 发送悄悄话 qiaoshe 的博客首页 (72 bytes) () 03/28/2012 postreply 18:49:14

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