2020骞撮櫆瑗垮叕鍕欏摗鑰冭│鏁�(sh霉)閲忛棞绯荤反缈�(3鏈�25鏃�)
鐎忚
鏀惰棌
2020骞撮櫆瑗垮叕鍕欏摗鑰冭│鏁�(sh霉)閲忛棞绯荤反缈掞細
1.鐢�1—9涓殑鏁�(sh霉)瀛楃祫鎴愪竴鍊嬩笁浣嶆暩(sh霉)锛屾湁鏁�(sh霉)瀛楅噸寰╃殑鎯呭舰鏈夊灏戠ó?
A.220
B.255
C.280
D.225
2.鏌愬簵閶師渚嗛姺鍞埄娼ょ偤閫插児20%鐨勭敘(ch菐n)鍝�锛屾瘡鏈堥姺鍞噺鐐�600浠�锛屽悗渚嗘寜瀹氬児鐨�9鎶樹績閵凤紝閵峰敭閲忓鍔犱簡锛屾湀鍒╂饯鍗绘矑鏈夊鍔�锛岀偤浜嗘湀鍒╂饯澧炲姞12%锛岄倓闇€瑕侀姺鍞噺澧炲姞( )浠�銆�
A.60
B.120
C.180
D.240
3.(300+301+302+……+397)-(100+101+……+197)=( )
A.19000
B.19200
C.19400
D.19600
4.璞℃姣旇辰涓�锛屾瘡鍊嬮伕鎵嬪潎鑸囧叾浠栭伕鎵嬫瘮璩戒竴灞€锛屾瘡灞€鍕濊€呭緱2鍒�锛岃矤鑰呭緱0鍒�锛屽拰妫嬪悇寰�1鍒�锛岄偅涔堜互涓嬪彲鑳芥槸閫欐姣旇辰鎵€鏈夐伕鎵嬪緱鍒嗙殑绺藉拰鏄細
A.78
B.67
C.56
D.89
5.灏忓懆璨蜂簡浜斾欢鍍规牸涓嶇瓑鐨勬湇瑁�锛岀附鍍圭偤2160鍏冦€傚叾涓渶璨寸殑鍏╀欢琛ｆ湇绺藉児鑸囧叾浣欎笁浠惰。鏈嶇殑绺藉児鐩哥暥锛岃€屾渶渚垮疁鐨勫叐浠惰。鏈嶇殑绺藉児姣旀渶璨寸殑琛ｆ湇楂�100鍏冿紝姣旂浜岃泊鐨勮。鏈嶉珮200鍏�銆傚墖绗笁璨寸殑琛ｆ湇鍍规牸鏄灏戝厓?
A.300
B.330
C.360
D.390
涓嬮潰鐐�2020骞撮櫆瑗垮叕鍕欏摗鑰冭│鏁�(sh霉)閲忛棞绯荤反缈掑弮鑰冪瓟妗堬細
1.绛旀: D
銆愯В鏋愩€戯細绲勬垚浠绘剰涓変綅鏁�(sh霉)鐨勬柟娉曟暩(sh霉)鐐�9×9×9锛屽叾涓矑鏈夋暩(sh霉)瀛楅噸寰╃殑鎯呭舰鐐�9×8×7锛屽洜姝よ偗瀹氭湁9×(81-56)=225绋槸閲嶅京鐨勩€傛晠姝ｇ⒑绛旀鐐篋銆�
2.绛旀: C
銆愯В鏋愩€戯細瑷師渚嗗畾鍍圭偤100锛屽墖鍒╂饯鐐�20锛屽墖鍘熶締鏈堢嵅鍒�12000锛屽畾鍍圭殑9鎶樼偤120×90%=108锛屽埄娼ょ偤8锛岃鏄庨姺鍞噺鐐�12000÷8=1500(浠�)锛屽埄娼ゅ鍔�12%锛岃鏄庨姺閲忎篃瑕佸鍔�12%锛屽洜姝ら姺閲忛渶瑕佸啀澧炲姞1 500×12%=180(浠�)銆�
3.绛旀: D
銆愯В鏋愩€戯細鍘熷紡=(300-100)+(301-101)+……+(397-197)=200×98锛屾晠姝ｇ⒑绛旀鐐篋銆�
4.绛旀: C
銆愯В鏋愩€戯細鐢遍鎰忓彲鐭�锛屾瘡鍫存瘮璩界敘(ch菐n)鐢�2鍒�锛屾晠鎵€鏈夐伕鎵嬪緱鍒嗗拰鎳夌偤鍋舵暩(sh霉)锛屾帓闄鍜孌锛孉閬搁爡浠ｈ〃姣旇辰鍫存暩(sh霉)鎳夌偤39鍫�锛孋閬搁爡浠ｈ〃姣旇辰鍫存暩(sh霉)鐐�28鍫淬€傛牴鎿�(j霉)姣旇辰瑕�(gu墨)鍓�锛屾瘮璩芥柟寮忕偤鍠惊鐠�(hu谩n)璩�锛岃嫢鏈塶鍊嬬悆闅婏紝姣旇辰鍫存鐐�锛屽凡鐭(2,8)=28锛孋(2,9)=36锛孋(2,10)=45锛屽彲鐭ュ牬娆′笉鍙兘鏄�39鍫�锛屾帓闄銆傛晠鏈绛旀鐐篊閬搁爡銆�
5.绛旀: D
銆愯В鏋愩€戯細瑷渶渚垮疁鐨勫叐浠惰。鏈嶅児鏍肩附鍜岀偤x锛岀涓夎泊鐨勮。鏈嶅児鏍肩偤y锛屽墖鏈€璨寸殑琛ｆ湇鍍规牸鐐猴細x-100锛岀浜岃泊鐨勮。鏈嶅児鏍肩偤锛歺-200銆傛牴鎿�(j霉)椤屾剰鏈�(x-100)+(x-200)=x+y=2160÷2=1080锛岃В寰梮=690锛寉=390銆傚洜姝�锛屾湰椤岀瓟妗堥伕鎿嘍閬搁爡銆�
浠ヤ笂鍏�(n猫i)瀹规槸2020骞撮櫆瑗垮叕鍕欏摗鑰冭│鏁�(sh霉)閲忛棞绯荤反缈�(3鏈�25鏃�)銆傚笇鏈涘皪鑰冪敓鏈夋墍骞姪銆傛湁鎰忔効鍫辫€冮櫆瑗垮叕鍕欏摗鑰冭│鐨勮€冪敓瑕佹姄绶婃檪闁撳京缈掑倷鑰�銆�2020闄滆タ鍏嫏鍝¤€冭│鍏憡鏆湭鍏竷锛岀偤浜嗛伩鍏嶉尟閬庡牨鍚�锛岃€冪敓鍙互 鍏嶈不闋愮磩鐭俊鎻愰啋锛屽強鏅傜嵅鍙栧牨鍚嶆檪闁�銆傞倓鍙互榛炴搳涓嬫柟鍏嶈不涓嬭級鏇村鑰冭│璩囨枡鍝�!
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