2020骞存禉姹熷叕鍕�(w霉)鍝¤€冭│琛屾脯鏁�(sh霉)閲忛棞(gu膩n)绯荤反缈�(x铆)椤�(3鏈�19鏃�)
2020骞存禉姹熷叕鍕�(w霉)鍝¤€冭│琛屾脯鏁�(sh霉)閲忛棞(gu膩n)绯荤反缈�(x铆)椤岋細
1.鐢�銆佷箼鍏╁湴鐩歌窛80km锛孉銆丅鍏╄紱杌婂垎鍒ュ緸鐢层€佷箼鍏╁湴鍚屾檪鍑虹櫦(f膩)锛屽悓鍚戣€岃锛屽凡鐭ョ敳鐨勯€熷害鐐�120km/h锛屼箼鐨勯€熷害鐐�100km/h锛屼笖琛岄閬庣▼涓箼姣忓崐鍊嬪皬鏅傞渶瑕佷紤鎭�5鍒嗛悩锛岀敳瑕佽拷涓婁箼鏈€鐭渶瑕�( )鍒嗛悩?
A.145
B. 150
C.100
D.140
2.鏌愬(xu茅)鏍$祫绻旀槬瀛f牎鍦掗亱鍕曟渻锛岀鐞嗗(xu茅)闄㈠叡鏈�85鍚嶅(xu茅)鐢熷弮鍔犻亱鍕曟渻璺戞闋呯洰锛屽叾涓細鍙冨姞100绫宠辰璺戠殑鏈�53浜猴紝鍙冨姞400绫崇殑鏈�38浜�锛屽弮鍔�3000绫抽暦璺戠殑鏈�12浜猴紝鏈変竴鍚嶉亱鍕曞仴灏囦笁椤炶窇姝ラ爡鐩兘鍙冨姞浜�锛屽晱锛氬彧鍙冨姞100绫崇煭璺戦爡鐩殑鏈€澶氭湁澶氬皯浜�?
A.50
B. 52
C.47
D.46
3.涓€鑷烘墜鍕曟墦鍗版鎵撳嵃鍠潰绱欏嫉闇€瑕�0.8绉掞紝鎵撳嵃闆欓潰绱欏嫉闇€瑕�2绉�锛屾瘡鎵撳嵃10鍒嗛悩闇€瑕佷紤鎭�1鍒嗛悩銆傜従(xi脿n)瑕佹墦鍗�10浠�200闋佺殑鏂囦欢锛屽皝闈㈠拰搴忚█鍠潰鎵撳嵃(鍚�1闋�)锛屽叾浠栭兘闆欓潰鎵撳嵃锛屽墖鏈€灏戦渶瑕佹墦鍗板闀锋檪闁�( )?
A.33鍒�34绉�
B. 34鍒�50绉�
C.36鍒�16绉�
D.35鍒�25绉�
4.涓€鍊嬬瀛愰噷鏈�45鍊嬪ぇ灏忚唱(zh矛)鍦伴兘鐩稿悓鐨勫皬鐞�锛岀磪銆侀粌銆佽棈(l谩n)鑹插皬鐞冨悇10鍊嬶紝鍙﹀鏈�7鍊嬬櫧鐞�锛�8鍊嬮粦鐞�锛岃│鍟忚嚦灏戝彇( )鍊嬪皬鐞�锛屾墠鑳戒繚璀夊彇鍑�8鍊嬮鑹茬浉鍚岀殑灏忕悆?
A.36
B. 37
C.42
D.35
榛炴搳涓嬮爜鏌ョ湅2020骞存禉姹熷叕鍕�(w霉)鍝¤€冭│琛屾脯鏁�(sh霉)閲忛棞(gu膩n)绯荤反缈�(x铆)椤屽弮鑰冪瓟妗�
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2.銆愮瓟妗堛€慍銆傝В鏋愶細瀹规枼鍟忛銆傝ō(sh猫)鍙冨姞鍏朵腑鍏╅爡閬嬪嫊鐨勫(xu茅)鐢熸湁x浜�锛屾牴鎿�(j霉)涓夎€呭鏂ュ叕寮忔湁85=53+38+12-x-2×1锛岃В寰梮=16浜�銆傝浣垮彧鍙冨姞100绫崇煭璺戦爡鐩殑浜烘渶澶氾紝灏辩洝鍙兘浠ら€�16鍚嶅悓瀛�(xu茅)鏄彧鍙冨姞400绫冲拰4000绫抽爡鐩殑浜�銆傚張鐢遍鎰忕煡锛氬弮鍔�3000绫崇殑鏈€澶氭湁12浜�锛屼笖鏈�1浜哄弮鍔犱簡涓夐爡闋呯洰锛屾晠鍙弮鍔�400绫冲拰4000绫抽爡鐩殑鏈€澶氭湁11浜�銆傚墖鍙弮鍔�100绫虫瘮璩界殑鏈€澶氱偤53-1-(16-11)=47浜�锛岄伕鎿嘋閬搁爡銆�
3.銆愮瓟妗堛€慍銆傝В鏋愶細10浠�200闋佺殑鏂囦欢锛屽叾涓柈闈�10×2=20寮�锛岄洐闈�198÷2×10=990寮碉紝闄ゅ幓鎵撳嵃姗熶紤鎭檪闁�锛屽叡闇€20×0.8+990×2=1996绉�=33鍒�16绉�锛屾牴鎿�(j霉)鎵撳嵃姗熸瘡鎵撳嵃10鍒嗛悩浼戞伅1鍒嗛悩鍙煡鎵撳嵃閫欐壒鏂囦欢鏈€灏戦渶瑕佷紤鎭�3娆★紝鍏辫▓浼戞伅1×3=3鍒嗛悩锛屾晠绺芥檪闁撻渶瑕�36鍒�16绉掞紝閬告搰C閬搁爡銆�
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