2021骞翠笂娴峰叕鍕�(w霉)鍝¤€冭│琛屾脯鏁�(sh霉)閲忛棞(gu膩n)绯绘瘡鏃ヤ竴绶达紙30锛�
鐎忚
鏀惰棌
2021骞翠笂娴峰叕鍕�(w霉)鍝¤€冭│琛屾脯鏁�(sh霉)閲忛棞(gu膩n)绯绘瘡鏃ヤ竴绶达紙30锛�
1.鏌愬柈浣嶇祫绻�31鍚嶅摗宸ュ垎A銆丅鍏╃祫鍒嗗垾鐢�5鍚嶅拰7鍚嶅煿瑷�(x霉n)鑰佸斧閫茶鍩硅〒(x霉n)锛屼笖A绲勫摗宸ユ伆濂借兘骞冲潎鍒嗛厤绲�5鍚嶅煿瑷�(x霉n)鑰佸斧锛孊绲勫摗宸ヤ篃鑳藉钩鍧囧垎閰嶇郸7鍚嶅煿瑷�(x霉n)鑰佸斧銆傚悗渚嗙敱浜庨儴鍒嗗摗宸ラ€氶亷浜嗚€冩牳鑰岄€€鍑哄煿瑷�(x霉n)锛岄渶瑕佸煿瑷�(x霉n)鐨勫摗宸ヤ汉鏁�(sh霉)娓涘皯锛屽柈浣嶄繚鐣欎簡A绲�4鍚嶅煿瑷�(x霉n)鑰佸斧銆丅绲�3鍚嶅煿瑷�(x霉n)鑰佸斧锛屼絾姣忎綅鑰佸斧鎵€甯剁殑鍝″伐浜烘暩(sh霉)涓嶈畩锛岄偅涔堢洰鍓嶈┎鍠綅閭勬湁澶氬皯鍝″伐姝ｅ湪鎺ュ彈鍩硅〒(x霉n)( )
A.15 B.16 C.17 D.18
2.6鍚嶇爺绌跺摗瑕佺偤鏌愯静(n贸ng)浣滅墿鑲茬ó鍏徃鍩硅偛涓€鎵圭ó鑻�锛屽湪瑷堝妰鍩硅偛闅庢锛岀偤浜嗕繚璀変竴瀹氱殑瀛樻椿鐜�锛屾瘡浜哄潎瑕佸鍩硅偛10鏍ó鑻�銆備絾鐢变簬鑷ㄦ檪浠诲嫏(w霉)锛�2鍚嶇爺绌跺摗涓嶈兘鍙冨姞鍩硅偛宸ヤ綔锛屽墿涓嬬殑姣忎汉瑕佹瘮2鍚嶇爺绌跺摗閫€鍑哄墠澶氬煿鑲�20鏍ó鑻椼€傝珛鍟忚静(n贸ng)浣滅墿鍏徃绺藉叡闇€瑕佸灏戞牚绋嫍( )
A.90 B.120 C.l50 D.180
3.鏌愬(xu茅)鏍℃湁瀛�(xu茅)鐢熻嫢骞插悕锛屽緸鍒ョ殑瀛�(xu茅)鏍¤(di脿o)鍏ヤ竴浜涚敺鐢熷悗锛岀敺鐢熸墍鍗犳瘮渚嬬偤80%;鍐嶅緸鍒ョ殑瀛�(xu茅)鏍¤(di脿o)鍏ュ悓妯ｆ暩(sh霉)閲忕殑鐢风敓鍚�锛屾瘮渚嬭畩?y艒u)?5%锛屽亣濡傚啀瑾�(di脿o)鍏ュ悓妯ｆ暩(sh霉)閲忕殑鐢风敓锛岄偅涔堟鏅傜殑鐢风敓鎵€鍗犳瘮渚嬬偤( )
A.95% B.92% C.90% D.88%
4.鏌愬煄甯傚嚭绉熻不瀵﹁鍒嗘瑷堣不锛�2鍏噷鍏�(n猫i)3鍏冿紝瓒呭嚭2鍏噷閮ㄥ垎棣栧叕閲�4鍏�锛屼箣鍚庝互1鍏冩瘡鍏噷鐨勫箙搴﹂仦澧烇紝涓嶈冻鍏噷鏅備互鏁村叕閲岃▓绠�銆傜敳涔欏叐浜哄垎鍒ヤ粯璨�75鍏冨拰102鍏�锛屽墖涔欐瘮鐢茶▓璨诲叕閲屾暩(sh霉)澶�( )鍏噷銆�
A.2 B.4 C.6 D.8
5.涓夊€嬩腑瀛�(xu茅)鐢熸瘮璩藉仛鍦嬮殯鐗╃悊濂ф灄鍖瑰厠瑭﹂銆傛瘡浜洪兘瑙ｅ嚭浜�30閬撻涓殑12閬�锛屼笖鎵€鏈夐閮藉凡琚€欎笁浜鸿В鍑�銆傞€�30閬撶墿鐞嗛涓紝鍙鍏朵腑涓€浜�銆佸叐浜哄拰涓変汉瑙ｅ嚭鐨勯鏁�(sh霉)鍚勪笉鐩哥瓑锛屽墖鍙鍏朵腑涓€浜鸿В鍑虹殑椤屾暩(sh霉)鏄�( )
A.14 B.15 C.22 D.25
婧Θ鎻愮ず锛�榛炴搳涓嬮爜鏌ョ湅2021骞翠笂娴峰叕鍕�(w霉)鍝¤€冭│琛屾脯鏁�(sh霉)閲忛棞(gu膩n)绯绘瘡鏃ヤ竴绶达紙30锛夌殑绛旀銆�2021骞翠笂娴峰叕鍕�(w霉)鍝¤€冭│灏囦簬浠婂勾12鏈堣垑琛岃€冭│锛屽皬绶ㄦ帹钖﹀悇浣嶈€冪敓浣跨敤 鍏嶈不闋�(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�2021骞翠笂娴峰叕鍕�(w霉)鍝″牨鍚嶆檪闁�銆佺瓎瑭︽檪闁撶⒑瀹氭檪鏀跺埌鐭俊閫氱煡锛屾彁閱掑ぇ瀹舵彁鍓嶅仛濂芥簴鍌�銆�
1.銆愯В鏋愩€慍銆傝ō(sh猫)A绲�5鍚嶅煿瑷�(x霉n)鑰佸斧姣忎汉鎵€甯剁殑鍝″伐浜烘暩(sh霉)鍧囩偤x锛孊绲�7鍚嶅煿瑷�(x霉n)鑰佸斧骞冲潎姣忎汉鎵€甯剁殑鍝″伐浜烘暩(sh霉)鍧囩偤y锛屾牴鎿�(j霉)椤屾剰鍙垪鏂圭▼锛�5x+7y=31銆傚洜鐐簒銆亂鐐烘鏁存暩(sh霉)锛屽墖x鍙兘鐐�2锛寉鍙兘鐐�3锛岀洰鍓嶈┎鍠綅閭勫湪鎺ュ彈鍩硅〒(x霉n)鐨勫摗宸ヤ汉鏁�(sh霉)鐐�4x+3y=17(浜�)銆�
2.銆愯В鏋愩€慏銆傝ō(sh猫)2鍚嶇爺绌跺摗閫€鍑哄墠锛�6鍚嶇爺绌跺摗姣忎汉闇€瑕佸煿鑲瞲鏍ó鑻�锛屾牴鎿�(j霉)椤屾剰鍙垪鏂圭▼锛氳В寰梮=40銆傚洜姝�锛岃静(n贸ng)浣滅墿鍏徃绺藉叡闇€瑕�(40-10)×6=180(鏍�)妯硅嫍銆�
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鏂规硶浜岋細鍒╃敤璩﹀€兼硶锛屽コ鐢熸暩(sh霉)閲忓绲備笉璁�锛岃ō(sh猫)濂崇敓鏁�(sh霉)閲忕偤60浜�銆傚墖绗簩娆¤(di脿o)鍏ョ敺鐢�60÷(1-85%)-60÷(1-80%)=100(浜�)銆傚亣濡傚啀瑾�(di脿o)鍏ュ悓妯ｆ暩(sh霉)閲忕敺鐢�锛屽コ鐢熸墍鍗犳瘮渚嬬偤60÷[60÷(1-85%)+100]=12%锛岀敺鐢熸墍鍗犳瘮渚嬬偤1-12%=88%銆�
4.銆愯В鏋愩€慉銆�
5.銆愯В鏋愩€慏銆�
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