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.lecture7.flv download	220.0 KB	2014-08-24 03:38:02+00:00
lecture7.flv download	468.8 MB	2014-08-24 03:38:02+00:00
lecture7.mov download	421.0 MB	2014-08-24 03:38:22+00:00
lecture7.mp3 download	46.6 MB	2014-08-24 03:38:40+00:00