温馨提醒：系统正在全面升级。您可以访问最新站点。谢谢！

  00鑴癗鑴佃伀*N鑱濷?Q姣忚劙N/f姘搘S鑱仦v0

  00鑴癗NTce+o姣忛湁[鑴孨HN濯掕伂 NsQ鑴檁0

  00@b姘揘姣忛湁[鑱∟鑴癗;N绡揜鐓鍐扻姣忚劙N鑴磋伀/f鑱¤伒aaY鑱瀡0

  00猫鲁录*NZZ氓漏虏yY,g1\ N茅陋庐盲潞炉0

  00yY鑴磋伀璐竊P*N1u4Y姣忚仱bZZ鑱鑴祣绡揷鑱燦bT0

  00鎺硈N姘撹仠/fw鑱瀡PW0RY~t鍗痬鑺﹁仺鎼侽鑱燦姣忔皳NT`/f g鑴縌 _4V濯掕伂涔堣仴 Nn鑱燦0

  00 N鑴淿涔堣仴鑱燦姣廯ON

  00涔堣仴鑴昏仴涔堣伈姣忚仭v^鍗Kbc鑱燦cm閾嗚仴"Z0

  ,{74鑴縵姣廬N鑴縵鑱磠/g

  00m閾嗚仴"Z鑴曡仯dk姣忚剻_N鑱垫灇e鑱滆仩N鑼玈l0

  NMR氓陆聡T莽赂聤\m茅聼鹿"Z忙垄潞氓垄聭vN氓隆聟d}Y0

  002x+9y=81

  003x+y=34

  00y=34-3x

  002x+9(34-3x)=81

  00& &

  00x=9

  00y=7

  N0

  00
鑱﹀獟鑱欒锤`0R姣弝Y鑴絲6q(W鐩睸鑼玁鑴祣鑱^姘揘鑴NO'Y鑼仜铏忚仴鑼仯鑱CQN!k楣縠z0

  00鎺硈(W璐竊eg姣忔嫝鑱k鏋歟IQ姣廮N/f鑱¤伒:N鎴伋鑱確鑱瀡0

  00 鑴糣鑱檡鑱TZZ姣忚劦鑱伕N濯掕伂/f鑼仜sY(WN,g鐩睸fN

  00 鑴佃伀姣廮N/f鑼仜sY(W鎷㈣伂,g鐩睸fN

  00 N闅唟`HN涔堣仴姣忚仱b鑱茬瘬c鑴祣鐩睸fN1\L鑱㈣仩N0

  00涔堣仴eg姣弝Y鑱伋濞剘鎺宠仴鑱確NSY鑱燬璨孲

  0]N鑴縵鑱磠/g0姣忔嫝鑱劋鑱璪鑱磢Y鑴1\鑴╟0R鑱燦鑴佃伀*N0

  00閿歋/f姣忔幊s(W鑴佃伀*Ng鑼玁姣弙^ N/fNSY鑱燬璨孲

  NwckaINX[(W鑱瀡g鑼玁姣廆b姘揘姣弝Y鑼係 N濯掕仚qN涔堣仴0

  00 鑼仜闀乫(WN,g

  0]N鑴縵鑱磠/g0鑱瀡鐩睸fN

  00姘撹仠/fyY涔坴妤糲(u !鑱籘QT<{ 鑱瀡楣縠鑴甽铏忚仴鑼仯姣忚锤`鑴淿1\鑱楣縖f婕忚仴娼濶t鑼仯鑱燦0

  00m茅聼鹿"Z1\猫鲁录HNY忙垄聡忙垄陆v,T@w0