2020骞村湅瀹跺叕鍕�(w霉)鍝℃暩(sh霉)閲忛棞(gu膩n)绯绘ā鎿│椤�(鍗佷竷)
鐎忚
鏀惰棌
2020骞村湅瀹跺叕鍕�(w霉)鍝¤€冭│棣笂鍒颁簡锛屽牨鑰�2020骞村湅瀹跺叕鍕�(w霉)鍝＄殑鑰冪敓瑕佺⿳妤靛倷鑰冨摝?锛�?span id="xphd1sz" class="dgj_key"> 鍏嶈不闋�(y霉)绱勭煭淇℃彁閱�鍙婃檪鐛插彇2020骞村湅瀹跺叕鍕�(w霉)鍝℃墦鍗版簴(zh菙n)鑰冭瓑鏅傞枔銆佽€冭│鏅傞枔绛夐噸瑕佺瘈(ji茅)榛炶€冭│鎻愰啋銆�
1.濡傛灉a銆乥鍧囩偤璩�(zh矛)鏁�(sh霉),涓�3a+7b=41,鍓嘺+b=( )銆�
A.5 B.6 C.7 D.8
2.3×999+8×99+4x9+8+7鐨勫€兼槸( )銆�
A.3840 B.3855 C.3866 D.3877
3.涓€鍊嬫湪宸ュ姞宸ユ湪鏂�,姣忎竴鍊嬪皬鏅傝鑺辫不15鍒嗛悩鍘荤（鍒ㄥ垁鍜屼慨鐞嗗伐鍏�,浠栫湡姝ｅ姞宸ユ潗鏂欐墍鐢ㄦ檪闁撳崰绺藉嫗鍕曟檪闁撶殑鐧惧垎姣旀槸澶氬皯?( )
A.65% B.70% C.75% D.80%
4.鍦ㄤ竴姊濊矾鍏╂梺鏍芥ü,鍏╂５妯逛箣闁撶殑璺濋洟鏄�5绫�,閫欐璺墰濂芥牻婊�100妫垫ü銆傞€欐璺附闀锋槸澶氬皯绫�?
A.500 D.3877 C.250 D.245
5.鏌愭柊鐧�(f膩)琛岀殑鑲＄エ绗竴澶╀笂婕蹭簡15%,绗簩澶╀笅璺屼簡10%,瑭茶偂绁ㄧ従(xi脿n)鍦ㄧ殑鍍规牸鑸囧師濮嬪児鏍肩浉姣旀湁浠€涔堣畩鍖�?( )
A.涓嬭穼2.5% B.鍍规牸涓嶈畩 C.涓婃疾1.5% D.涓婃疾3.5%
涓嬮潰鐐哄弮鑰冪瓟妗堣В鏋�
1.C?锛佺獦棣曡Д?1闄や互7浣欐暩(sh霉)鐐�6,鍥犵偤绛夊紡鍏╅倞鐩哥瓑,鏁�3a闄や互7浣欐暩(sh霉)涔熺偤6,a鏈€灏忕偤2,姝ゆ檪b=5,绗﹀悎椤屾剰,閬窩銆�
2.A?锛佺獦棣曡Д鍏嬭啱鈧伕闋呭熬鏁�(sh霉)鍚勪笉鐩稿悓,鍙€冩叜绲�(ji茅)鏋滅殑灏炬暩(sh霉)銆�7+2+6+8+7=30,鎵€浠ュ熬鏁�(sh霉)鐐�0,鏁呴伕A銆�
3.C?锛佺獦棣曡Д?60-15)÷60=75%,閬窩銆�
4.D?锛佺獦棣曡Д绺捐喅杩滆崥瑭�?鍓囨瘡閭婃牻浜�50妫�,49鍊嬮枔闅�,5×49=245,閬窪銆�
5.D銆傘€愯В鏋愩€戣ō(sh猫)鑲＄エ鐨勫師濮嬪児鏍肩偤1,鍓囩浜屽ぉ鐨勫児鏍�=1×(1+15%)(1-10%)=1.035,涓婃疾浜�3.5%,閬窪銆�
浠ヤ笂鍏�(n猫i)瀹规槸2020骞村湅瀹跺叕鍕�(w霉)鍝℃暩(sh霉)閲忛棞(gu膩n)绯绘ā鎿│椤�(鍗佷竷)銆傚笇鏈涘皪鑰冪敓鏈夋墍骞姪銆傚牨鑰冨湅瀹跺叕鍕�(w霉)鍝¤€冭│鐨勮€冪敓瑕佹姄绶婃檪闁撳京(f霉)缈�(x铆)鍌欒€�?锛熸ⅱ?span id="c6xamyv" class="dgj_key"> 鍏嶈不闋�(y霉)绱勭煭淇℃彁閱�锛屽強鏅傜嵅鍙栫瓎瑭︽檪闁撶瓑鑰冭│鍚勫€嬬瘈(ji茅)榛炲摝銆備簡瑙ｆ洿澶氭湁闂�(gu膩n)鑰冭│鐨勫収(n猫i)瀹�锛屽彲浠ラ棞(gu膩n)娉ㄧ挵(hu谩n)鐞冪恫(w菐ng)鏍″叕鍕�(w霉)鍝￠牷閬撳皬绶ㄦ渻鍙婃檪鏇存柊鐨�銆�
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