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1. PPS��q��G�u��→�ﶵ�C�I��A�ȡC��Ŀ�u��\�Ұ�PPS��A�ȶi�{�v�C[1]

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[1] http://tommy558.pixnet.net/blog/post/26457370
[2] http://blog.lyhdev.com/2011/05/blog-post_289.html

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