谁的责任大。
优酷视频
http://m.youku.com/video/id_XMjc5MTQ0MTIxMg==.html?from=s7.8-1.2&spm=a2h0k.8191393.bodydiv.5!2~5!18~A&source=http%3A%2F%2Fwww.soku.com%2Fm%2Fy%2Fvideo%3Fq%3D%25E8%25A2%25AB%25E6%2592%259E%25EF%25BC%258C%25E8%25B0%2581%25E7%259A%2584%25E8%25B4%25A3%25E4%25BB%25BB