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51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51锛�
1.涓夌瓙铇嬫灉鍏遍噸120鏂�锛屽鏋滃緸绗竴绛愪腑鍙栧嚭15鏂ゆ斁鍏ョ浜岀瓙锛屽緸绗簩妗嗕腑鍙栧嚭8鏂ゆ斁鍏ョ涓夌瓙锛屽緸绗笁绛愪腑鍙栧嚭2鏂ゆ斁鍏ョ涓€绛�锛岄€欐檪涓夌瓙铇嬫灉鐨勯噸閲忕浉绛�锛屽晱鍘熶締绗簩绛愪腑鏈夎構鏋滃灏戞枻( )
A.33 B.34 C.40 D.53
2.涓€鍊嬪彛琚嬮噷鏈�4鍊嬩笉鍚岀殑绱呯悆锛�6鍊嬩笉鍚岀殑鐧界悆锛岃嫢鍙栦竴鍊嬬磪鐞冭2鍒嗭紝鍙栦竴鍊嬬櫧鐞冭1鍒�锛屽緸涓换鍙�5鍊嬬悆锛屼娇绺藉垎涓嶅皯浜�7鍒嗙殑鍙栨硶鏈夊灏戠ó( )
A.3 B.120 C.180 D.186
3.瓒崇悆姣旇辰鐨勮▓(j矛)鍒嗚(gu墨)鍓囨槸锛氬嫕涓€鍫村緱3鍒�锛屽钩涓€鍫村緱1鍒�锛岃几涓€鍫村緱0鍒�銆傚鏋滄煇淇辨▊閮ㄥ叡鎵撲簡28鍫磋伅(li谩n)璩�锛屽叾涓矤(f霉)6鍫�锛屽叡寰�40鍒嗭紝閭ｄ箞閫欏€嬮殜(du矛)鍕濅簡澶氬皯鍫�( )
A.8 B.10 C.12 D.9
4.鏌愬晢鍝佹寜瀹氬児鍑哄敭锛屾瘡鍊嬪彲浠ョ嵅寰�45鍏冪殑鍒╂饯锛岀従(xi脿n)鍦ㄦ寜瀹氬児鐨勫叓浜旀姌鍑哄敭8鍊嬫垨鎸夊畾鍍规瘡鍊嬫笡鍍�35鍏冨嚭鍞�12鍊�锛屼簩鑰呮墍鑳界嵅寰楃殑鍒╂饯涓€妯ｃ€傞€欑ó鍟嗗搧姣忓€嬪畾鍍瑰灏戝厓( )
A.180 B.200 C.210 D.220
5.涓€妗惰静(n贸ng)钘�锛屽姞鍏ヤ竴瀹氶噺鐨勬按绋€閲嬪悗锛屾績搴︾偤6%銆傚啀鍔犲叆鍚屾ǎ澶氱殑姘寸█閲�锛岃静(n贸ng)钘ョ殑婵冨害璁�?y艒u)?%銆傝嫢绗笁娆″啀鍔犲叆鍚屾ǎ澶氱殑姘�锛岃静(n贸ng)钘ョ殑婵冨害灏囪畩?y艒u)妲庡棇? )
A.3% B.2.5% C.2% D.1.8%
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3.銆愯В鏋愩€慏銆傝В娉曚竴锛氱敱椤屾剰鍙煡锛岃┎闅�(du矛)鐨勫嫕鍫存暩(sh霉)鍜屽钩鍫存暩(sh霉)涔嬪拰鐐�28-6=22(鍫�)锛岃ō(sh猫)鍕濆牬鏁�(sh霉)鐐簒锛屽墖骞冲牬鏁�(sh霉)鐐�(22-x)锛屾牴鎿�(j霉)椤屾剰鍙垪鏂圭▼锛�3x+(22-x)=40锛岃В寰梮=9銆�
瑙ｆ硶浜岋細鍋囪ō(sh猫)22鍫村叏鍕�锛屾噳(y墨ng)寰�66鍒�锛岀浉宸�66-40=26(鍒�)锛岄€欐槸鐢卞钩灞€閫犳垚鐨�锛屾瘡骞充竴鍫村皯寰�2鍒�锛屽墖骞充簡26÷2=13(鍫�)锛屽彲鐩存帴姹傚嚭鍕濅簡22-13=9(鍫�)銆�
4.銆愯В鏋愩€態銆傝ō(sh猫)鍟嗗搧瀹氬児鐐簒鍏冦€傜敱椤屾剰鍙垪鏂圭▼锛歔0.85x-(x-45)]×8=(45-35)×12锛岃В寰梮=200銆�
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