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鐎忚
鏀惰棌
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1.鍠崹(d煤)瀹屾垚鏌愰爡(xi脿ng)宸ョ▼锛岀敳闅�(du矛)闇€瑕�36澶╋紝涔欓殜(du矛)闇€瑕�30澶�锛屼笝闅�(du矛)闇€瑕�32澶┿€傚鏋滃畨鎺掑悎浣滄柦宸�锛屾寜鐓х敳涔�銆佷箼涓�銆佷笝鐢层€佺敳涔�……鐨勯爢搴忔寜澶╄吉杞�(zhu菐n)锛屽晱(w猫n)瀹屾垚閫欓爡(xi脿ng)宸ヤ綔鏅�(sh铆)锛岀敳宸ヤ綔浜嗗灏戝ぉ( )
A.11澶╂暣 B.11澶╁ C.12澶╂暣 D.12澶╁
2.姘存灉搴楄鎶�256鍊�(g猫)铇�(p铆ng)鏋滆閫�(j矛n)绱欑锛岀従(xi脿n)鏈夎兘瑁�12鍊�(g猫)铇�(p铆ng)鏋滃拰鑳借18鍊�(g猫)铇�(p铆ng)鏋滅殑鍏╃ó绱欑锛屽晱(w猫n)鏈€灏戣瑁�(b菙)鍏呭灏戝€�(g猫)铇�(p铆ng)鏋滄墠鑳芥濂藉皣涓€瀹氭暩(sh霉)閲忕殑绱欑瑁濇豢( )
A.0 B.2 C.4 D.6
1.銆愯В鏋愩€慉銆傚皣宸ヤ綔绺介噺瑷�(sh猫)鐐烘檪(sh铆)闁�36銆�30銆�32鐨勬渶灏忓叕鍊嶆暩(sh霉)锛屽嵆1440锛屽墖鐢查殜(du矛)鏁堢巼鐐�1440÷36=40锛屼箼闅�(du矛)鏁堢巼鐐�1440÷30=48锛屼笝闅�(du矛)鏁堢巼鐐�1440÷32=45銆傛寜鐓ч鐩爢搴忔寜澶╄吉杞�(zhu菐n)锛屾瘡3澶╃偤涓€鍊�(g猫)鍛ㄦ湡锛屾瘡鍊�(g猫)鍛ㄦ湡涓敳宸ヤ綔2澶�锛屼笁闅�(du矛)鍏卞彲浠ュ畬鎴�1×(40+48)+1×(48+45)+1×(40+45)=266锛�1440÷266=5浣�110锛�锛屽嵆鐢ㄤ簡5鍊�(g猫)鍛ㄦ湡(15澶�)锛岄倓鍓�110浠藉伐浣滈噺銆傜16澶╃偤鐢蹭箼鍚堜綔锛屽畬鎴愬伐浣滈噺鐐�1×(40+48)=88锛�16澶╃祼(ji茅)鏉熷悗宸ヤ綔閲忛倓鍓╀笅110-88=22锛屽墖绗�17澶╃偤涔欎笝鍚堜綔锛屽氨鍙互瀹屾垚鍏ㄩ儴宸ヤ綔閲�銆傚墖鐢查殜(du矛)宸ヤ綔鐨勬檪(sh铆)闁撶偤5×2+1=11澶┿€傛晠姝ｇ⒑绛旀鐐篈闋�(xi脿ng)銆�
2.銆愯В鏋愩€態銆傚亣瑷�(sh猫)鑳借12鍊�(g猫)铇�(p铆ng)鏋滃拰18鍊�(g猫)铇�(p铆ng)鏋滅殑绱欑鏁�(sh霉)閲忓垎鍒ョ偤a鑸嘼锛岄渶瑕佽(b菙)鍏呯殑铇�(p铆ng)鏋滄暩(sh霉)鏄痻锛屽墖鏂圭▼鍙〃绀虹偤12a+18b=256+x銆傚洜12鍜�18閮芥槸6鐨勫€嶆暩(sh霉)锛屽墖256+x鏄�6鐨勫€嶆暩(sh霉)銆備唬鍏ラ伕闋�(xi脿ng)閫�(j矛n)琛岄(y脿n)璀�銆�
A闋�(xi脿ng)锛�256+0=256锛屼笉鏄�6鐨勫€嶆暩(sh霉)锛屾帓闄�銆�
B闋�(xi脿ng)锛�256+2=258锛屾槸6鐨勫€嶆暩(sh霉)锛屽寲绨�(ji菐n)寰�2a+3b=43锛屾牴鎿�(j霉)濂囧伓鐗规€�锛�43鏄鏁�(sh霉)銆�2a鏄伓鏁�(sh霉)锛屽墖3b鏄鏁�(sh霉)锛屽彲寰梑鏄鏁�(sh霉)銆傝嫢b绛変簬1锛屽墖a=20锛岀瓑寮忔垚绔�锛屾纰恒€傚洜椤岀洰鍟�(w猫n)鐨勬槸鏈€灏�锛屽洜姝ゅ叾浣欑瓟妗堜笉鐢ㄩ(y脿n)璀�銆�
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