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1.锛�2008骞村洓宸濈渷瀹滃�惧競锛�
宸茬煡:濡傚浘,鎶涚墿绾縴=-x2+bx+c涓巟杞淬�亂杞村垎鍒�鎴栧惖鐩镐氦浜庣偣A锛�-1锛�0锛夈�丅锛�0锛�3锛変袱鐐癸紝鍏堕《鐐逛负D.
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3. 锛�08娴欐睙娓╁窞锛夊�傚浘锛屽湪 涓�锛� 锛� 锛� 锛� 鍒嗗埆鏄�杈� 鐨勪腑鐐癸紝鐐� 浠庣偣 鍑哄彂娌� 鏂瑰悜杩愬姩锛岃繃鐐� 浣� 浜� 锛岃繃鐐� 浣� 浜� 浜�
锛屽綋鐐� 涓庣偣 閲嶅悎鏃讹紝鐐� 鍋滄�㈣繍鍔�锛庤�� 锛� 锛�
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4.锛�08灞变笢鐪佹棩鐓у競锛夊湪鈻矨BC涓�锛屸垹A锛�90掳锛孉B锛�4锛孉C锛�3锛孧鏄疉B涓婄殑鍔ㄧ偣锛堜笉涓嶢锛孊閲嶅悎锛夛紝杩嘙鐐逛綔MN鈭�BC浜�AC浜庣偣N锛庝互MN涓虹洿寰勪綔鈯橭锛屽苟鍦ㄢ姍O鍐呬綔鍐呮帴鐭╁舰AMPN锛庝护AM锛漻锛�
锛�1锛夌敤鍚玿鐨勪唬鏁板紡琛ㄧず鈻矼NP鐨勯潰绉疭锛�
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5銆侊紙2007娴欐睙閲戝崕锛夊�傚浘1锛屽凡鐭ュ弻鏇茬嚎y= (k>0)涓庣洿绾縴=k鈥瞲浜や簬A锛孊涓ょ偣锛岀偣A鍦ㄧ��涓�璞￠檺.璇曡В绛斾笅鍒楅棶棰橈細(1)鑻ョ偣A鐨勫潗鏍囦负(4锛�2).鍒欑偣B鐨勫潗鏍囦负锛涜嫢鐐笰鐨勬í鍧愭爣涓簃锛屽垯鐐笲鐨勫潗鏍囧彲琛ㄧず涓�锛�
锛�2锛夊�傚浘2锛岃繃鍘熺偣O浣滃彟涓�鏉＄洿绾縧锛屼氦鍙屾洸绾縴= (k>0)浜嶱锛孮涓ょ偣锛岀偣P鍦ㄧ��涓�璞￠檺.鈶犺�存槑鍥涜竟褰�APBQ涓�瀹氭槸骞宠�屽洓杈瑰舰锛涒憽璁剧偣A.P鐨勬í鍧愭爣鍒嗗埆涓簃锛宯锛屽洓杈瑰舰APBQ鍙�鑳芥槸鐭╁舰鍚�?鍙�鑳芥槸姝ｆ柟褰㈠悧?鑻ュ彲鑳斤紝鐩存帴鍐欏嚭mn搴旀弧瓒崇殑鏉′欢锛涜嫢涓嶅彲鑳斤紝璇疯�存槑鐞嗙敱.
6. 锛�2008娴欐睙閲戝崕锛夊�傚浘1锛屽湪骞抽潰鐩磋�掑潗鏍囩郴涓�锛屽繁鐭ノ擜OB鏄�绛夎竟涓夎�掑舰锛岀偣A鐨勫潗鏍囨槸閿�妗�(0锛�4)锛岀偣B鍦ㄧ��涓�璞￠檺锛岀偣P鏄痻杞翠笂鐨勪竴涓�鍔ㄧ偣锛岃繛缁揂P锛屽苟鎶娢擜OP缁曠潃鐐笰鎸夐�嗘椂閽堟柟鍚戞棆杞�.浣胯竟AO涓嶢B閲嶅悎.寰楀埌螖ABD.锛�1锛夋眰鐩寸嚎AB鐨勮В鏋愬紡锛涳紙2锛夊綋鐐筆杩愬姩鍒扮偣锛� 锛�0锛夋椂锛屾眰姝ゆ椂DP鐨勯暱鍙婄偣D鐨勫潗鏍囷紱锛�3锛夋槸鍚﹀瓨鍦ㄧ偣P锛屼娇螖OPD鐨勯潰绉�绛変簬 锛岃嫢瀛樺湪锛岃�锋眰鍑虹�﹀悎鏉′欢鐨勭偣P鐨勫潗鏍囷紱鑻ヤ笉瀛樺湪锛岃�疯�存槑鐞嗙敱.
7.(2008娴欐睙涔変箤)濡傚浘1锛屽洓杈瑰舰ABCD鏄�姝ｆ柟褰�锛孏鏄疌D杈逛笂鐨勪竴涓�鍔ㄧ偣(鐐笹涓嶤銆丏涓嶉噸鍚�)锛屼互CG涓轰竴杈瑰湪姝ｆ柟褰�ABCD澶栦綔姝ｆ柟褰�CEFG锛岃繛缁揃G锛孌E锛庢垜浠�鎺㈢┒涓嬪垪鍥句腑绾挎�礏G銆佺嚎娈礑E鐨勯暱搴﹀叧绯诲強鎵�鍦ㄧ洿绾跨殑浣嶇疆鍏崇郴锛�
锛�1锛夆憼鐚滄兂濡傚浘1涓�绾挎�礏G銆佺嚎娈礑E鐨勯暱搴﹀叧绯诲強鎵�鍦ㄧ洿绾跨殑浣嶇疆鍏崇郴锛�
鈶″皢鍥�1涓�鐨勬�ｆ柟褰�CEFG缁曠潃鐐笴鎸夐『鏃堕拡(鎴栭�嗘椂閽�)鏂瑰悜鏃嬭浆浠绘剰瑙掑害 锛屽緱鍒板�傚浘2銆佸�傚浘3鎯呭舰锛庤�蜂綘閫氳繃瑙傚療銆佹祴閲忕瓑鏂规硶鍒ゆ柇鈶犱腑寰楀埌鐨勭粨璁烘槸鍚︿粛鐒舵垚绔�,骞堕�夊彇鍥�2璇佹槑浣犵殑鍒ゆ柇锛�
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锛�3锛夊湪绗�(2)棰樺浘5涓�锛岃繛缁� 銆� 锛屼笖a=3锛宐=2锛宬= 锛屾眰 鐨勫�硷紟
8. (2008娴欐睙涔変箤)濡傚浘1鎵�绀猴紝鐩磋�掓��褰�OABC鐨勯《鐐笰銆丆鍒嗗埆鍦▂杞存�ｅ崐杞翠笌 杞磋礋鍗婅酱涓�.杩囩偣B銆丆浣滅洿绾� 锛庡皢鐩寸嚎 骞崇Щ锛屽钩绉诲悗鐨勭洿绾� 涓� 杞翠氦浜庣偣D锛屼笌 杞翠氦浜庣偣E锛�
锛�1锛夊皢鐩寸嚎 鍚戝彸骞崇Щ锛岃�惧钩绉昏窛绂籆D涓� (t 0)锛岀洿瑙掓��褰�OABC琚�鐩寸嚎 鎵�杩囩殑闈㈢Н锛堝浘涓�闃村奖閮ㄤ唤锛変负 锛� 鍏充簬 鐨勫嚱鏁板浘璞″�傚浘2鎵�绀猴紝 OM涓虹嚎娈碉紝MN涓烘姏鐗╃嚎鐨勪竴閮ㄥ垎锛孨Q涓哄皠绾匡紝N鐐规í鍧愭爣涓�4锛�
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9.(2008灞变笢鐑熷彴)濡傚浘锛岃彵褰�ABCD鐨勮竟闀夸负2锛孊D=2锛孍銆丗鍒嗗埆鏄�杈笰D锛孋D涓婄殑涓や釜鍔ㄧ偣锛屼笖婊¤冻AE+CF=2.
锛�1锛夋眰璇侊細鈻矪DE鈮屸柍BCF锛�
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锛�2锛夋姏鐗╃嚎 鎴� 鍦� 杞翠笂鏂圭殑閮ㄥ垎鏄�鍚﹀瓨鍦ㄧ偣N锛屼娇浠�A锛孋锛孧锛孨涓洪《鐐圭殑鍥涜竟褰㈡槸骞宠�屽洓杈瑰舰.鑻ュ瓨鍦�锛屾眰鍑虹偣N鐨勫潗鏍囷紱鑻ヤ笉瀛樺湪锛岃�疯�存槑鐞嗙敱锛�
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11.2008娣呮睙瀹佹尝)2008骞�5鏈�1鏃ワ紝鐩�鍓嶄笘鐣屼笂鏈�闀跨殑璺ㄦ捣澶фˉ鈥斺�旀澀宸炴咕璺ㄦ捣澶фˉ閫氳溅浜嗭紟閫氳溅鍚庯紝鑻忓崡A鍦板埌瀹佹尝娓�鐨勮矾绋嬫瘮鍘熸潵缂╃煭浜�120鍗冪背锛庡凡鐭ヨ繍杈撹溅閫熷害涓嶅彉鏃讹紝琛岄┒鏃堕棿灏嗕粠鍘熸潵鐨�3鏃�20鍒嗙缉鐭�鍒�2鏃讹紟
锛�1锛夋眰A鍦扮粡鏉�宸炴咕璺ㄦ捣澶фˉ鍒板畞娉㈡腐鐨勮矾绋嬶紟
锛�2锛夎嫢璐х墿杩愯緭璐圭敤鍖呮嫭杩愯緭鎴愭湰鍜屾椂闂存垚鏈�锛屽凡鐭ユ煇杞﹁揣鐗╀粠A鍦板埌瀹佹尝娓�鐨勮繍杈撴垚鏈�鏄�姣忓崈绫�1.8鍏冿紝鏃堕棿鎴愭湰鏄�姣忔椂28鍏冿紝閭ｄ箞璇ヨ溅璐х墿浠嶢鍦扮粡鏉�宸炴咕璺ㄦ捣澶фˉ鍒板畞娉㈡腐鐨勮繍杈撹垂鐢ㄦ槸澶氬皯鍏冿紵
锛�3锛堿鍦板噯澶囧紑杈熷畞娉㈡柟鍚戠殑澶栬繍璺�绾匡紝鍗宠揣鐗╀粠A鍦扮粡鏉�宸炴咕璺ㄦ捣澶фˉ鍒板畞娉㈡腐锛屽啀浠庡畞娉㈡腐杩愬埌B鍦帮紟鑻ユ湁涓�鎵硅揣鐗╋紙涓嶈秴杩�10杞︼級浠嶢鍦版寜澶栬繍璺�绾胯繍鍒癇鍦扮殑杩愯垂闇�8320鍏冿紝鍏朵腑浠嶢鍦扮粡鏉�宸炴咕璺ㄦ捣澶фˉ鍒板畞娉㈡腐鐨勬瘡杞﹁繍杈撹垂鐢ㄤ笌锛�2锛変腑鐩稿悓锛屼粠瀹佹尝娓�鍒癇鍦扮殑娴蜂笂杩愯垂瀵逛竴鎵逛笉瓒呰繃10杞︾殑璐х墿璁¤垂鏂瑰紡鏄�锛氫竴杞�800鍏冿紝褰撹揣鐗╂瘡澧炲姞1杞︽椂锛屾瘡杞︾殑娴蜂笂杩愯垂灏卞噺灏�20鍏冿紝闂�杩欐壒璐х墿鏈夊嚑杞︼紵
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