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反对验证码～～～最厌恶在每次登陆邮箱什么的都输验证码，还是POJ现在这样好！In Reply To:“验证码”是不是能够防止 刷登陆 和 刷题 ？ Posted by:alpc62 at 2007-09-25 23:03:59 Followed by:
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