2020骞撮櫆瑗垮叕鍕�(w霉)鍝¤€冭│鏁�(sh霉)閲忛棞(gu膩n)绯荤反缈�(x铆)(3鏈�27鏃�)
鐎忚
鏀惰棌
2020骞撮櫆瑗垮叕鍕�(w霉)鍝¤€冭│鏁�(sh霉)閲忛棞(gu膩n)绯荤反缈�(x铆)锛�
1.璨蜂竴浜�4鍒嗗拰8鍒嗙殑閮电エ锛屽叡鑺�6鍏�8瑙�锛屽凡鐭�8鍒嗙殑閮电エ姣�4鍒嗙殑閮电エ澶�40寮碉紝閭ｄ箞鍏╃ó閮电エ鍚勮卜浜嗗灏戝嫉? ( )
A.80 40
B.70 30
C.60 20
D.50 10
2.鐢熺敘(ch菐n)涓€浠禔鐢�(ch菐n)鍝佹棩鑰楀師鏂欑敳4鍗冨厠銆佷箼2鍗�锛屽彲鐛插緱1000鍏冨埄娼わ紝鐢熺敘(ch菐n)涓€浠禕鐢�(ch菐n)鍝佹秷鑰楀師鏂欑敳3鍗冨厠銆佷箼5鍗囷紝鍙嵅寰�1300鍏冨埄娼�?锛孎(xi脿n)鏈夊師鏂欑敳40鍗冨厠銆佷箼38鍗囷紝閫氶亷鐢熺敘(ch菐n)閫欏叐绋敘(ch菐n)鍝�锛屽彲鐛插緱鐨勬渶澶у埄娼ょ偤澶氬皯鍏�?( )
A.15000
B.14500
C.13500
D.12500
3.濡傚湒锛屾涓夎褰BC鐨勯倞闀锋槸100绫�锛孊CDE鏄鏂瑰舰锛岀敳寰濧鍑虹櫦(f膩)锛屾部姝ｄ笁瑙掑舰ABC閫嗘檪閲濊窇姝�锛岄€熷害鏄�4绫�/绉�;涔欏緸8鍚屾檪鍑虹櫦(f膩)锛屾部姝ｆ柟褰㈤€嗘檪閲濊窇姝ワ紝閫熷害鏄�5绫�/绉�銆傚墖鐢�銆佷箼鍑虹櫦(f膩)鍚庝綍鏅傜涓€娆＄浉閬�?( )
A.80绉�
B.150绉�
C.100绉�
D.175绉�
4.11338×25593鐨勫€肩偤( )銆�
A.290133434
B.290173434
C.290163434
D.290153434
5.鐢�10寮靛悓妯ｉ暦鐨勭礄姊濈矘鎺ユ垚涓€姊濋暦61鍘樼背鐨勭礄姊濓紝濡傛灉姣忓€嬫帴闋檿閮介噸鐤�1鍘樼背锛岄偅涔堟瘡寮电礄姊濋暦( )鍘樼背銆�
A.7
B.6.9
C.6.1
D.7.1
涓嬮潰鐐�2020骞撮櫆瑗垮叕鍕�(w霉)鍝¤€冭│鏁�(sh霉)閲忛棞(gu膩n)绯荤反缈�(x铆)鍙冭€冪瓟妗堬細
1.绛旀: B
銆愯В鏋愩€戯細濡傛灉鎷垮嚭40寮�8鍒嗙殑閮电エ锛屼綑涓嬬殑閮电エ涓�8鍒嗚垏4鍒嗙殑寮垫暩(sh霉)灏变竴妯ｅ銆�
(680-8×40)÷(8+4)=30(寮�)
鍙煡浣欎笅鐨勯兊绁ㄤ腑锛�8鍒嗗拰4鍒嗙殑鍚勬湁30寮�锛屽洜姝�8鍒嗛兊绁ㄦ湁40+30=70(寮�)銆�
2.绛旀: D
銆愯В鏋愩€戯細鐢遍鎰�锛岄鍏堥渶瑕佹豢瓒冲師鏂欐浠�锛屽彲寰楋細4A+3B≤40锛�2A+5B≤38锛岃瀵熸浜屼笉绛夊紡鍙櫦(f膩)鐝�(xi脿n)姣忓€嬩笉绛夊紡涓瑼銆丅绯绘暩(sh霉)涔嬪拰鎭板ソ鍧囩偤7锛屼篃鍗冲彇鐢�7鍗冨厠銆佷箼7鍗囷紝鍓囧彲鎭板ソ鐢熺敘(ch菐n)A銆丅鍚勪竴浠�銆傝€冩叜鍒板凡鐭ョ殑鐢�銆佷箼鍘熸枡鏁�(sh霉)鎺ヨ繎锛屽洜姝や笂杩版伆濂介厤姣旂殑鐢熺敘(ch菐n)鏂瑰紡鍙互淇濊瓑鐢ㄦ帀鐩″彲鑳藉鐨勫師鏂�锛屽緸鑰屽埄娼ょ洝鍙兘楂�銆傛牴鎿�(j霉)鍘熸枡鑼冨湇闄愬埗锛屽彲鐭銆丅閰嶅皪鐢熺敘(ch菐n)5绲勫悗锛岄倓鍓╀笅鐢�5鍗冨厠銆佷箼3鍗囷紝閭勫彲浠ュ啀鐢熺敘(ch菐n)涓€浠禔銆傚洜姝ゅ彲鐭ユ渶澶у埄娼ょ偤6×1000+5×1300=12500鍏冦€傛晠姝ｇ⒑绛旀鐐篋銆�
3.绛旀: C
銆愯В鏋愩€戯細 鐢蹭箼浜屼汉鐩搁亣锛岀浉閬囧湴榛炰竴瀹氬湪BC涓�锛岀暥(d膩ng)涔欏緸B鍑虹櫦(f膩)锛屾部姝ｆ柟褰㈤€嗘檪閲濊窇鍒癈榛炴檪锛岀敳璺戜簡4×(100÷5)=80绫�锛岄倓鍦ˋC涓�锛屼笉鍙兘鐩搁亣锛屼笅涓€娆′箼寰濨榛炲嚭鐧�(f膩)鏄�80绉�锛屾鏅傜敳璺戜簡320绫筹紝寰濧鍑虹櫦(f膩)20绫�锛屽埌C榛炴濂界浉閬�锛屾摎(j霉)姝ゆ眰鍑虹浉閬囨檪闁撳嵆鍙�銆�(100×4+100×5)÷(4+5)=900÷9=100(绉�)銆�
4.绛旀: B
銆愯В鏋愩€戯細閫欏咕鍊嬫暩(sh霉)鍙湁涓枔涓€浣嶄笉涓€妯�锛屽叾浠栨暩(sh霉)浣嶄笂鐨勬暩(sh霉)瀛椾箣鍜�2+9+0+1+3+4+3+4=26涓嶈兘琚�3鏁撮櫎銆傚洜鐐�25593鏄�3鐨勫€嶆暩(sh霉)锛屾墍浠�26锕腑闁撻偅浣嶄箣鍚庨€欏€嬫暩(sh霉)鍙互琚�3鏁撮櫎锛岀敱姝ゅ彲鐭ュ儏B閬搁爡26+7=33绗﹀悎瑕佹眰锛屽叾瀹冪殑26+3=29锛�26+6=32锛�26+5=31閮戒笉琛岋紝鏁呮纰虹瓟妗堢偤B銆�
5.绛旀: A
銆愯В鏋愩€戯細瑷�(sh猫)姣忓嫉绱欐闀穉鍘樼背锛屾瘡鍊嬫帴闋噸鐤�1鍘樼背锛屽墖10寮电礄姊濆叡鏈�9鍊嬫帴闋紝鍗�9鍘樼背锛屽垪鍑烘柟绋嬬偤10a-9=61锛岃В寰楁柟绋嬬偤a=7鍘樼背锛屾晠姝ｇ⒑绛旀鐐篈銆�
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