2016�繤
μӱ֮2016һʲô?
ȣǸƷΪPercepictureΪ֪ͼƬͨܵѰҺͲٿͼƬʦ�Ƶϵͳͼû...
ֲϵʵ˽ֱȥ,Щӡ?...
ʱֲϵˡëɷֱ ̄ĶǡӶԴȷϣֲϵʵ˽ֱ1218...
ʲô˼
ɭͻ϶нࡢľࡢˮࡢ˼,ҾΡɭӦڻ),ֵŷ˼ǡߡ:)Ź˾úܶͺܸ˰ɡ
ǵйҵ?
ǵйҵǵһڵ쳧̣ǵ֮ǰصģǵ֮ǰѾΪȫڶ...
е47ѧ2016^˶ᶨ916ٿ,˶...
(1)ñ־Ƶĺ:ͨù·ųٲ70km/h;(2)֪ٶv=40km/h,t=0.5h,47еʦ·Ϊ:v=stɵs=vt=40km/h0.5h...
ʿ˫ڵIJDZȻ?
ΣӳһǷ⽮ʮһֱȨգҲǼˣŮѧ...
ϡʲôõ
ķַΪ,ǰ硢ᡢ桢衢ϡޡ̡7ԪΪϡԪ,ϡԪ;żԺᡢء...
166Ӣŷ˹ͶӢŷԪʲôӰ...
ΣҪȷһ㣬ӢŷӢ˵ԲաʵΪŷˣŷԪۣӢŻڴδΣһֱѹڵλǻ...
ܸܲһ¡μǡǰ15ÿص?
20161130գʮĽϹ̿֯ʽĻŲ¼ߣŹ μǡԭģоϰ˿ף...
ƤʲôҪˢ,Щע?
ϺöӶйˢᾭ ˵ˢƤ ʧ ӡҲᵭȥ (^^*) ǵҪˢӴ ʲôҪע ʾȫ ע3,996 ...