马郁兰调料:急找初中物理课件
http://2www.go1.wy8.net
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专用课件搜索引擎，几乎能搜出你要任何的课件
帮你搜了几个
※(下载方法：右击--目标另存为--确定）
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"科学探究-杠杆的平衡条件" => http://www.xyjys.com.cn/wuli/djzggphtj.ppt
杠杆在水平方向平衡的研究 => http://elab.org.cn/gallery/fuzhou/fuzhou_zp04/fuzhou_zp04_2.ppt
杠杆的平衡条件 => http://61.144.246.13/sb/resource/200412281837549484217.ppt
杠杆的平衡条件动画 => http://jingtan.go1.icpcn.com/html/kj/c2/23.swf
杠杆的平衡条件动画播放 => http://search.tom.com/mp3/listenflash.php?url=http%3A%2F%2Fwww%2Ewestspe%2Dedu%2Enet%2Fstudy%2Fkeli%2Fpss%2F03%2Ffiles%2Fgg%5Ftp%2Eswf&kid=0&song=%CC%EC%C6%BD%B5%C4%D4%AD%C0%ED%A1%AA%A1%AA%B8%DC%B8%CB%C6%BD%BA%E2
杠杆的平衡条件动画播放 => http://search.tom.com/mp3/listenflash.php?url=http%3A%2F%2Fwww%2Eszxhxx%2Ecom%2Fphysics%2Fflash%2Fforce%2Flever%2Eswf&kid=0&song=%B8%DC%B8%CB%C6%BD%BA%E2
杠杆的平衡条件动画播放 => http://search.tom.com/mp3/listenflash.php?url=http%3A%2F%2Fwsbedu%2Ecom%2Fkejian%2Fjia%2Fflash%2Ff27%2Eswf&kid=0&song=%B8%DC%B8%CB%C6%BD%BA%E2
http://www.skycn.com/soft/17189.html
http://www.lxy0454.org/qt/kj/sort/383_1.htm
http://www.srxedu.net/
http://www.czwlzx.com/
平时不努力 现在花高分请教别人 丢人