浜嬫キ(y猫)鍠綅鑰冭│锛氭暩(sh霉)閲忛棞(gu膩n)绯粅缈�(x铆)椤岀反缈�(x铆)锛�22锛�


鏁�(sh霉)閲忛棞(gu膩n)绯�
1.鏌愪紒妤�(y猫)鏈夊叐绋€ц唱(zh矛)鐨勫摗宸�锛屾寮忓摗宸ヨ垏鍕炲嫏(w霉)娲鹃仯鍚堝悓宸ャ€傛寮忓摗宸ヤ韩鏈夌浉鐣�(d膩ng)浜庡熀鏈伐璩�30%鐨勭妇鏁堝伐璩�锛屽嫗鍕�(w霉)娲鹃仯鍚堝悓宸ョ殑鍩烘湰宸ヨ硣鑸囨寮忓摗宸ョ浉鍚屼絾娌掓湁绺炬晥宸ヨ硣锛屼笖缂哄皯鐩哥暥(d膩ng)浜庡熀鏈伐璩�12%鐨勪綇鎴垮叕绌嶉噾銆傝嫢瑭蹭紒妤�(y猫)姝e紡鍝″伐鑸囧嫗鍕�(w霉)娲鹃仯鍚堝悓宸ョ殑姣斾緥鐐�2鈭�3锛岀偤瀵︾従(xi脿n)鍚屽伐鍚岄叕涓斾繚璀夋寮忓摗宸ュ緟閬囦笉璁�锛岃┎浼佹キ(y猫)鐨勮柂閰敮鍑哄皣澧炲姞澶氬皯?
A.13.4%
B.16%
C.20%
D.21%
2.鏌愬蹇冩柟闄f渶澶栧堡鍜屾澶栧堡瀛�(xu茅)鐢熷垎鍒ョ祫鎴愬叐鍊嬪伐浣滃皬绲�锛屽垎鍒ュ幓瀹屾垚宸ヤ綔閲忕浉绛夌殑A銆丅鍏╅爡宸ョ▼锛岄枊宸�8澶╁悗锛孉宸ョ▼瀹屽伐锛岀劧鍚庡叐鍊嬪皬绲勫悎骞讹紝鍙堢敤浜嗕竴澶�锛屽墰濂藉畬鎴愪簡B宸ョ▼銆傚亣瑷�(sh猫)姣忓€嬪(xu茅)鐢熺殑宸ヤ綔鏁堢巼鐩哥瓑锛岃嫢鍙畨鎺掑叾浣欏(xu茅)鐢熷幓瀹屾垚鑸嘇銆丅绺藉伐浣滈噺鐩哥瓑鐨凜宸ョ▼锛岄渶瑕佸灏戝ぉ?
A.16
B.25
C.36
D.48
3.鎶�1鍒�31鐨勯€g簩(x霉)鏁存暩(sh霉)鍒嗘垚A銆丅鍏╃祫锛屼笖10鍦ˋ绲�锛屽鏋滄妸10寰濧绲勭Щ鍒癇绲勪腑锛屽墖A绲勪腑鍚勬暩(sh霉)鐨勫钩鍧囨暩(sh霉)澧炲姞1/2锛孊绲勪腑鍚勬暩(sh霉)鐨勫钩鍧囨暩(sh霉)涔熷鍔�1/2锛屽晱A绲勪腑鍘熸湁澶氬皯鍊嬫暩(sh霉)?
A.9
B.10
C.21
D.22
婧Θ鎻愮ず锛氱瓟妗堝強瑙f瀽瑕嬩笅闋�
鍙冭€冪瓟妗堝強瑙f瀽
1.銆愮瓟妗堛€慏
瑙f瀽锛氳ō(sh猫)鍩烘湰宸ヨ硣鐐�1锛屽墖姝e紡鍝″伐姣忎汉鐨勮柂閰敮鍑虹偤1+30%×1+12%×1=1.42銆傝ō(sh猫)鍝″伐绺芥暩(sh霉)鐐�5锛屽墖瀵︾従(xi脿n)鍚屽伐鍚岄叕鍓嶇殑钖叕鏀嚭鐐�1.42×2+1×3=5.84銆傚鐝�(xi脿n)鍚屽伐鍚岄叕鍚庤柂閰敮鍑虹偤1.42×5=7.1锛屽鍔�7.1÷5.84-1=1.26÷5.84>20%锛岄伕D銆�
2.銆愮瓟妗堛€慉
瑙f瀽锛氭牴鎿�(j霉)“鏂归櫍鐩搁劙鍏╁堡浜烘暩(sh霉)鐩稿樊鐐�8”锛岃ō(sh猫)鏂归櫍鏈€澶栧堡浜烘暩(sh霉)鐐簒锛屽墖娆″灞や汉鏁�(sh霉)鐐簒-8銆傝ō(sh猫)姣忓€嬪(xu茅)鐢熶竴澶╃殑宸ヤ綔閲忕偤1锛屼緷椤屾剰鏈�8x=8(x-8)+x+x-8锛岃В寰梮=36銆傛柟闄e悇灞や汉鏁�(sh霉)渚濇鏄�36銆�28銆�20銆�12銆�4锛岄櫎鏈€澶栧堡鍜屾澶栧堡閭勬湁瀛�(xu茅)鐢�20+12+4=36浜猴紝浜烘暩(sh霉)鑸囨柟闄f渶澶栧堡浜烘暩(sh霉)鐩稿悓銆侰宸ョ▼鐨勫伐浣滈噺鏄疉宸ョ▼宸ヤ綔閲忕殑2鍊�锛屽墖瀹屾垚C宸ョ▼闇€瑕�8×2=16澶�銆�
3.銆愮瓟妗堛€慏
瑙f瀽锛氳ō(sh猫)A绲勪腑鍘熸湁x鍊嬫暩(sh霉)锛屽墖B绲勪腑鍘熸湁(31-x)鍊嬫暩(sh霉)锛岃ō(sh猫)A銆丅鍏╃祫鍘熶締鐨勫钩鍧囨暩(sh霉)鍒嗗垾鐐篴銆乥锛岀敱椤屾剰鍙緱锛�
浠ヤ笂鍏�(n猫i)瀹瑰氨鏄挵(hu谩n)鐞冪恫(w菐ng)鏍″皬绶ㄧ偤澶у鏁寸悊鐨勮伔妤�(y猫)鑳藉姏娓|鏁�(sh霉)閲忛棞(gu膩n)绯荤繏(x铆)椤岀反缈�(x铆)鍙婄瓟妗堣В鏋�锛屽笇鏈涘皪澶у鏈夋墍骞姪銆傜(鍒€涓嶈鐮嶆煷宸ワ紝鍐嶅皬鐨勫姫鍔�×365澶╅兘鏈冭畩寰楀亯澶�锛屾鏈冩槸鐣欑郸婧�(zh菙n)鍌欏ソ鐨勪汉!鏇村鑰冭│璩囪▕鍙婄繏(x铆)椤岀反缈�(x铆)璜嬬辜绾�(x霉)闂�(gu膩n)娉ㄧ挵(hu谩n)鐞冪恫(w菐ng)鏍′簨妤�(y猫)鍠綅鑰冭│闋婚亾锛屽姞娌箏~绁濆ぇ瀹跺湪浜嬫キ(y猫)鍠綅鑰冭│涓棗闁嬪緱鍕�锛屽彇寰楄嚜宸辩悊鎯崇殑鎴愮妇銆�
鏈€鏂拌硣瑷�
- 2020骞翠簨妤�(y猫)鍠綅鑰冭│鑱锋脯姣忔棩涓€绶达細鍒ゆ柗鎺ㄧ悊锛�7.21锛�2020-07-21
- 2020骞翠簨妤�(y猫)鍠綅鑰冭│鑱锋脯姣忔棩涓€绶达細鍒ゆ柗鎺ㄧ悊锛�7.20锛�2020-07-20
- 2020骞翠簨妤�(y猫)鍠綅鑰冭│鑱锋脯姣忔棩涓€绶达細璩囨枡鍒嗘瀽(4.28)2020-04-28
- 2020骞翠簨妤�(y猫)鍠綅鑰冭│鑱锋脯姣忔棩涓€绶村尟绺�(1.15)2020-01-15
- 浜嬫キ(y猫)鍠綅鑰冭│锛氳█瑾炵悊瑙缈�(x铆)椤岀反缈�(x铆)锛�146锛�2020-01-09
- 浜嬫キ(y猫)鍠綅鑰冭│锛氳█瑾炵悊瑙缈�(x铆)椤岀反缈�(x铆)锛�147锛�2020-01-09
- 浜嬫キ(y猫)鍠綅鑰冭│锛氳█瑾炵悊瑙缈�(x铆)椤岀反缈�(x铆)锛�145锛�2020-01-09
- 浜嬫キ(y猫)鍠綅鑰冭│锛氬垽鏂锋帹鐞唡缈�(x铆)椤岀反缈�(x铆)锛�140锛�2020-01-09
- 浜嬫キ(y猫)鍠綅鑰冭│锛氭暩(sh霉)閲忛棞(gu膩n)绯粅缈�(x铆)椤岀反缈�(x铆)锛�105锛�2020-01-09
- 浜嬫キ(y猫)鍠綅鑰冭│锛氭暩(sh霉)閲忛棞(gu膩n)绯粅缈�(x铆)椤岀反缈�(x铆)锛�104锛�2020-01-09