2020骞存禉姹熷叕鍕�(w霉)鍝¤娓�(c猫)鏁�(sh霉)閲忛棞(gu膩n)绯绘瘡鏃ヤ竴绶�(7鏈�14鏃�)
鐎忚
鏀惰棌
2020骞存禉姹熷叕鍕�(w霉)鍝¤娓�(c猫)鏁�(sh霉)閲忛棞(gu膩n)绯绘瘡鏃ヤ竴绶�(7鏈�14鏃�)
1.鍏╃鍚屾ǎ澶氱殑铔嬮粌娲惧垎鍒ュ垎鐧�(f膩)绲﹀叐闅�(du矛)蹇楁効鑰呭仛鏃╅锛屽垎绲︾敳闅�(du矛)姣忎汉6濉婄己8濉�锛屽垎绲︿箼闅�(du矛)姣忎汉7濉婂墿6濉�锛屽凡鐭ョ敳闅�(du矛)姣斾箼闅�(du矛)澶�6浜�锛屽墖涓€绠辫泲榛冩淳鏈夊灏戝( )
A.120
B.160
C.180
D.240
2.涓€瀹朵笁鍙ｆ簴(zh菙n)鍌欏鍑烘梾娓�銆傜暥(d膩ng)?sh霉)璧滃睉?銆佷箼鍏╁鏃呰绀撅紝姣忓€�(g猫)浜虹殑鏃呮父瀹氬児(ji脿)閮戒竴妯�锛屼絾灏�(du矛)瀹跺涵鏃呮父閮芥湁鍎�(y艒u)鎯犮€傜敳鏃呰绀捐〃绀哄皬瀛╁彲浠ユ墦鍏姌;涔欐梾琛岀ぞ琛ㄧず鍏ㄥ鍙墦鍏簲鎶�銆傜稉(j墨ng)鏍哥畻锛屼箼鏃呰绀捐渚垮疁100鍏�銆傞偅涔堟瘡鍊�(g猫)浜虹殑鏃呮父瀹氬児(ji脿)鏄�( )
A.2000鍏�
B.1800鍏�
C.1500鍏�
D.1000鍏�
3.鐢�銆佷箼銆佷笝涓夊€�(g猫)鏂藉伐闅�(du矛)锛屼箼闅�(du矛)鐨勬晥鐜囨槸鐢查殜(du矛)鐨�2鍊�锛岀敳2澶╃殑宸ヤ綔閲忚垏涓�3澶╃殑宸ヤ綔閲忕浉鍚�?锛孎(xi脿n)鏈夊伐绋嬮噺鐩稿悓鐨勫叐闋�(xi脿ng)宸ョ▼鐢辩敳銆佷笝鍒嗗垾璨�(f霉)璨�(z茅)锛屽悓鏅�(sh铆)闁嬪伐锛屼箼鍦ㄧ敳闅�(du矛)骞繖浜嗚嫢骞插ぉ鍚庤綁(zhu菐n)鍘诲公蹇欎笝闅�(du矛)锛屾渶鍚庡悓鏅�(sh铆)绔ｅ伐锛屽叡12澶┿€傚晱涔欏湪鐢查殜(du矛)骞繖浜嗗咕澶�( )
A.4
B.6
C.5
D.7
4.鐢�銆佷箼鍏╄紱姹借粖鍒嗗垾寰濧銆丅鍏╁湴鍚屾檪(sh铆)鐩稿悜鍑虹櫦(f膩)锛岀敳杌婅椐涗簡涓€娈垫檪(sh铆)闁撳悗鍦ㄩ珮閫熻矾鏃佺殑浼戞伅绔欏仠鐣欎簡鍗婂皬鏅�(sh铆)鍚庣辜绾�(x霉)涓婅矾锛屽湪璺滲鍦�252鍗冪背铏曡垏涔欒粖鐩搁亣锛屼箣鍚庡叐杓涜粖?y谩n)^绾�(x霉)鍓嶉€�(j矛n)锛屾渶绲傜暥(d膩ng)涔欒粖鍒伴仈(d谩)A鍦版檪(sh铆)锛岀敳杌婅窛闆鍦伴倓鏈�102鍗冪背銆傚亣瑷�(sh猫)鐢层€佷箼鍏╄紱杌婅椐涢€熷害鎭掑畾涓旀瘮鍊肩偤5鈭�6锛屽墖A銆丅鍏╁湴鐩歌窛澶氬皯鍗冪背( )
A.402
B.432
C.462
D.472
5.鏌愰亱(y霉n)鍕�(d貌ng)鍝佺墝鍟嗗煄鑸夎绡€(ji茅)鏃ヤ績閵�锛岄¨瀹㈣臣鐗╂豢368鍏冨嵆鍙嵅璐�(z猫ng)涓€寮甸潰鍊肩偤100鍏冪殑浠ｉ噾鍒�锛岃┎浠ｉ噾鍒稿彲鍦ㄤ笅涓€娆℃秷璨�(f猫i)鏅�(sh铆)锛岀敤浜庤臣璨峰柈浠跺児(ji脿)鏍煎湪129鍏冧互涓婄殑鍟嗗搧銆傚皬寮垫兂鍦ㄨ┎鍟嗗煄璩艰卜4浠跺晢鍝�锛屽児(ji脿)鏍煎垎鍒ョ偤299鍏�銆�199鍏冦€�119鍏�銆�69鍏冿紝鍓囦粬鑷冲皯闇€瑕佹敮浠樺灏戝厓( )
A.386
B.486
C.586
D.686
婧Θ鎻愮ず锛�榛�(di菐n)鎿婁笅闋佸彲鏌ョ湅2020骞存禉姹熷叕鍕�(w霉)鍝¤娓�(c猫)鏁�(sh霉)閲忛棞(gu膩n)绯绘瘡鏃ヤ竴绶�(7鏈�14鏃�)绛旀銆�2020骞存禉姹熷叕鍕�(w霉)鍝¤€冭│鏅�(sh铆)闁撶偤7鏈�26鏃ワ紝寤鸿鍚勪綅鑰冪敓浣跨敤鐠�(hu谩n)鐞冪恫(w菐ng)鏍� 鍏嶈不(f猫i)闋�(y霉)绱勭煭淇℃彁閱�鏈嶅嫏(w霉)锛岄爯(y霉)绱勬垚鍔熷彲鍦ㄧ瓎瑭︽檪(sh铆)闁撳埌渚嗘檪(sh铆)鐛插緱鐭俊閫氱煡锛屾彁閱掑ぇ瀹跺仛濂借€冭│婧�(zh菙n)鍌�銆�
1.銆愯В鏋愩€態銆傜敱“涓€绠辫泲榛冩淳鍒嗙郸鐢查殜(du矛)锛屾瘡浜�6濉婄己8濉�”鍙煡锛岃泲榛冩淳绺介噺M+8鎳�(y墨ng)鐐�6鐨勫€嶆暩(sh霉)锛岀敱姝ゆ帓闄銆丆銆丏涓夐爡(xi脿ng)锛屽彧鏈塀闋�(xi脿ng)婊胯冻锛岀暥(d膩ng)閬�銆�
2.銆愯В鏋愩€慉銆備緷鎿�(j霉)椤屾剰锛岃ō(sh猫)姣忓€�(g猫)浜虹殑鏃呮父瀹氬児(ji脿)鐐簒鍏�锛屽墖鐢叉梾琛岀ぞ鐨勭附璨�(f猫i)鐢�=2x+0.6x=2.6x锛屼箼鏃呰绀剧殑绺借不(f猫i)鐢�=3x×0.85=2.55x銆備箼鏃呰绀捐純鐢茶渚垮疁100鍏冮將锛屽墖2.6x锕�2.55x=100锛岃В寰梮=2000銆侫闋�(xi脿ng)鐣�(d膩ng)閬搞€�
3.銆愯В鏋愩€慍銆傝ō(sh猫)鐢茬殑鏁堢巼鐐�3锛屽墖涓欑殑鏁堢巼鐐�2锛屼箼鐨勬晥鐜囩偤6?锛孎(xi脿n)鏈夊叐闋�(xi脿ng)宸ョ▼閲忕浉鍚岀殑宸ョ▼鐢辩敳銆佷笝鍒嗗垾璨�(f霉)璨�(z茅)锛岃ō(sh猫)涔欏湪鐢查殜(du矛)骞繖浜唜澶�锛屾牴鎿�(j霉)椤屾剰鍒楁柟绋嬪緱3×12+6x=2×12+6(12-x)锛岃В寰梮=5銆侰闋�(xi脿ng)鐣�(d膩ng)閬搞€�
4.銆愯В鏋愩€態銆傚叐杌婇€熷害姣旂偤5鈭�6锛屽墖璺▼姣斾篃鐐�5鈭�6锛岀浉閬囧悗鐢茶粖鎵€璧拌矾绋嬬偤252-102=150(鍗冪背)锛屽墖涔欒粖鎵€璧拌矾绋嬬偤150÷5×6=180(鍗冪背)锛屽墖A銆丅鍏╁湴鐩歌窛252+180=432(鍗冪背)銆侭闋�(xi脿ng)鐣�(d膩ng)閬�銆�
5.銆愯В鏋愩€慍銆傝鎯虫敮浠樼殑鏈€灏�锛屽墖鎳�(y墨ng)鐩″彲鑳藉緱鍒颁唬閲戝埜骞朵娇鐢ㄤ唬閲戝埜銆傜附鍍�(ji脿)鐐�299+199+119+69=686<2×368锛屽墖鏈€澶氱嵅寰�1寮典唬閲戝埜锛屼笖鍙兘鐢ㄤ簬涓嬫璩艰卜199鍏冩垨299鍏冪殑鍟嗗搧鏅�(sh铆)鎵嶈兘浣跨敤锛屾晠鑷冲皯鏀粯686-100=586鍏�銆侰闋�(xi脿ng)鐣�(d膩ng)閬�銆�
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