09锟竭匡拷锟斤拷锟斤拷锟斤拷锟斤拷锟絓锟斤拷锟絚锟絝锟斤拷锟斤拷锟斤拷3
锟斤拷源锟斤拷锟竭匡拷锟絎(w锟斤拷ng) 2009-08-09 12:27:24
锟斤拷锟斤拷锟斤拷锟斤拷锟絓锟斤拷锟絚锟絝锟斤拷锟斤拷锟斤拷
锟斤拷锟斤拷锟斤拷锟絚1锟斤拷平锟斤拷锟絓锟斤拷
锟斤拷锟斤拷锟斤拷锟斤拷08锟斤拷V锟絴锟斤拷某同锟絎锟斤拷锟斤拷锟斤拷锟节撅拷锟斤拷锟斤拷W(w锟斤拷ng)锟斤拷锟斤拷锟劫讹拷锟斤拷锟节夛拷锟斤拷锟斤拷锟斤拷25m/s锟斤拷锟劫讹拷锟斤拷水平锟斤拷锟津反忥拷锟斤拷锟斤拷锟斤拷c锟斤拷锟斤拷锟斤拷木锟斤拷x锟斤拷10m锟斤拷15m之锟絞锟斤拷锟斤拷锟皆空氾拷锟斤拷锟斤拷锟斤拷取g=10m/s2,锟斤拷锟节夛拷锟斤拷锟较凤拷锟斤拷锟絚锟侥高度凤拷锟斤拷锟斤拷( )
锟斤拷锟斤拷A.0.8m锟斤拷锟斤拷.8m B.0.8m锟斤拷1.6m
锟斤拷锟斤拷C.1.0m锟斤拷1.6m D.1.0m锟斤拷1.8m
锟斤拷锟斤拷锟絚锟斤拷锟斤拷锟絛锟斤拷http://files.eduu.com/down.php?id=143222
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