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�30鏃�)

鏇存柊鏅�(sh铆)闁擄細2020-03-30 09:51:46 渚嗘簮锛氱恫(w菐ng)绲�(lu貌)

鐎忚

鏀惰棌

鍦版柟鍏嫏(w霉)鍝″牨(b脿o)鍚�銆佽€冭│銆佹煡鍒嗘檪(sh铆)闁� 鍏嶈不(f猫i)鐭俊鎻愰啋

鍦板崁(q奴)

鐛插彇椹�(y脿n)璀� 绔嬪嵆闋�(y霉)绱�

璜�(q菒ng)?zh铆)椤氭啛D鐗囬(y脿n)璀夌⒓鍚庣嵅鍙栫煭淇￠(y脿n)璀夌⒓

鐪嬩笉娓呮锛屾彌寮靛湒鐗�

鍏嶈不(f猫i)鐛插彇鐭俊椹�(y脿n)璀夌⒓

鎽樿 闄滆タ鍏嫏(w霉)鍝¤€冭│鑼冨湇寰堝唬锛屼竴鑸寘鎷斂娌�銆佹硶寰嬨€佺稉(j墨ng)婵�(j矛)銆佷汉鏂�銆佸湴鐞嗐€佺鎶€銆佺敓娲荤瓑鏂归潰锛岀(j矛ng)鐖�(zh膿ng)涔熷緢婵€鐑�锛岄兘闇€瑕侀€�(j矛n)琛屽ぇ閲忕殑寰�(f霉)缈�(x铆)鍘荤悊瑙�銆佹帉鎻°€侀瀼鍥哄悇椤炶垏鍏嫏(w霉)鍝¤€冭│瀵嗗垏鐩搁棞(gu膩n)鐨勭煡璀�(sh铆)锛岀⿳妤靛倷鑰�銆備互涓嬪収(n猫i)瀹规槸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�30鏃�)銆傚笇鏈涘皪(du矛)鑰冪敓鏈夋墍骞姪銆�

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.灏忓嫉灏囨柊璨风殑鎵嬫(j墨)闁嬫(j墨)瀵嗙⒓瑷�(sh猫)鐐虹敱1銆�3銆�6銆�9绲勬垚鐨勫洓浣嶆暩(sh霉)锛岀浜屽ぉ锛屽皬寮甸枊姗�(j墨)鏅�(sh铆)蹇樹簡鍥涗綅鏁�(sh霉)鐨勫叿楂旀帓搴�锛屽彧瑷樺緱鏁�(sh霉)瀛�3鍜�9鐩搁劙涓�1涓嶅湪鏈€鍚�銆傚晱灏忓嫉瑕佽│澶氬皯娆℃墠鑳界⒑淇濇墦闁嬫墜姗�(j墨)?

A.6

B.8

C.10

D.12

2.鏌愬柈浣嶆妧琛�(sh霉)鏀寔鍜屽敭鍚庢湇鍕�(w霉)鍏╁€�(g猫)閮ㄩ杸鐨勭敺鑱峰伐浜烘暩(sh霉)涔嬪拰鑸囧コ鑱峰伐浜烘暩(sh霉)涔嬪拰鐩稿悓銆傛妧琛�(sh霉)鏀寔閮ㄩ杸鐨勭敺鎬ц伔宸ヤ汉鏁�(sh霉)鏄コ鎬х殑1.5鍊�锛屽敭鍚庢湇鍕�(w霉)閮ㄩ杸鐨勫コ鎬ц伔宸ユ瘮鐢锋€ц伔宸ュ10浜�銆傚晱鎶€琛�(sh霉)鏀寔閮ㄩ杸鏈夊灏戜汉?

A.25

B.30

C.35

D.50

3.鐢茶▓(j矛)鍔�12:15鍑虹櫦(f膩)浠�45鍗冪背/灏忔檪(sh铆)鐨勯€熷害闁嬭粖鍓嶅線A甯�锛屽苟浜�15:45鎶甸仈(d谩)銆備絾浠栧洜鏁呭欢閬插埌13:05鎵嶅嚭鐧�(f膩)骞朵簬15:35鎶甸仈(d谩)銆傚晱浠栧(sh铆)闅涚殑琛岄閫熷害鐐哄灏戝崈绫�/灏忔檪(sh铆)?

A.54

B.57

C.60

D.63

4.灏忚常閮ㄦ棭涓婂啺鏌滀腑鏈夊彲妯�20鐡�锛岃槆鎵撴按15鐡躲€備腑鍗堟竻榛�(di菐n)鍐版煖鏅�(sh铆)鐧�(f膩)鐝�(xi脿n)鏌滀腑鍓╀綑鐨勫彲妯傜附鍍�(ji脿)鑸囪槆鎵撴按鐩哥瓑銆傚凡鐭ュ彲妯�3鍏冧竴鐡讹紝铇囨墦姘�3.5鍏冧竴鐡�銆傚晱涓婂崍鍙▊鍜岃槆鎵撴按鍚堣▓(j矛)鏈€澶氳常鍑轰簡澶氬皯鐡�?

A.22

B.18

C.12

D.9

5.鐢�銆佷箼鍏╁悕宸ュ尃鍏卞悓瀹屾垚600浠剁Ξ鍝佸寘瑁�锛岀敳姣忓ぉ姣斾箼澶氬畬鎴�10浠�锛岀4澶╀箼鍥犵梾璜�(q菒ng)鍋囦竴澶╋紝鏈€绲傚叡鐢ㄤ簡9鏁村ぉ瀹屾垚浜嗗叏閮ㄥ伐浣�銆傚晱鐢层€佷箼鍏╀汉鍏卞悓宸ヤ綔涓€澶╄兘瀹屾垚澶氬皯浠剁Ξ鍝佸寘瑁�?

A.64

B.70

C.72

D.80

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锛欱

銆愯В鏋愩€戯細鐢遍鎰忓彲鐭�锛岃婊胯冻1涓嶅湪鏈€鍚�锛屽墖鍙娇3銆�6鎴�9鍦ㄦ渶鍚�(鍗冲湪绗洓浣�)锛屽垎鎯呮硜瑷庤珫濡備笅锛�(1)鑻ョ鍥涗綅鏁�(sh霉)瀛楃偤3锛氳淇濊瓑3鍜�9鐩搁劙锛岀涓変綅鏁�(sh霉)瀛楀彧鑳界偤9锛屽墿浣欏叐鍊�(g猫)鏁�(sh霉)瀛楀湪绗竴浣嶅拰绗簩浣嶉€�(j矛n)琛屽叏鎺掑垪锛屾湁绋儏娉�銆�(2)鑻ョ鍥涗綅鏁�(sh霉)瀛楃偤9锛氳淇濊瓑3鍜�9鐩搁劙锛岀涓変綅鏁�(sh霉)瀛楀彧鑳界偤3锛屽墿浣欏叐鍊�(g猫)鏁�(sh霉)瀛楀湪绗竴浣嶅拰绗簩浣嶉€�(j矛n)琛屽叏鎺掑垪锛屾湁绋儏娉�銆�(3)鑻ョ鍥涗綅鏁�(sh霉)瀛楃偤6锛氳淇濊瓑3鍜�9鐩搁劙锛屽墖1鍙兘鏄涓€浣嶆暩(sh霉)瀛楁垨绗笁浣嶆暩(sh霉)瀛�锛�3鍜�9鍐嶉€�(j矛n)琛屽叏鎺掑垪锛屾湁绋儏娉�銆傚洜姝わ紝婊胯冻姊濅欢鐨勬儏娉佹暩(sh霉)浣嶇ó锛屽嵆瑕佽│8娆℃墠鑳界⒑淇濇墦闁嬫墜姗�(j墨)銆傛晠姝ｇ⒑绛旀鐐築銆�

2.绛旀锛欴

瑷�(sh猫)鎶€琛�(sh霉)鏀寔閮ㄩ杸濂宠伔宸ョ偤x浜�锛屽墖鐢疯伔宸ョ偤1.5x浜�銆傚敭鍚庢湇鍕�(w霉)鐢疯伔宸ョ偤y浜�锛屽墖濂宠伔宸ョ偤y+10浜�銆傜敱椤屾剰鍙垪鏂圭▼x+y+10=1.5x+y锛岃В寰梮=20浜�銆傚墖鎶€琛�(sh霉)鏀寔閮ㄩ杸鏈墄+1.5x=50浜�銆傛晠姝ｇ⒑绛旀鐐篋

3.绛旀锛欴

銆愯В鏋愩€戯細鐢遍鎰忓彲鐭ワ紝瑷�(j矛)鍔�12:15鍑虹櫦(f膩)锛�15:45鎶甸仈(d谩)锛屽叡琛岄3灏忔檪(sh铆)30鍒�锛屽嵆3.5灏忔檪(sh铆)銆傚墖璺▼鐐�45x3.5=157.5鍗冪背銆傚(sh铆)闅�13:05鍑虹櫦(f膩)锛�15锛�35鎶甸仈(d谩)锛岃椐�2灏忔檪(sh铆)30鍒�锛屽嵆2.5灏忔檪(sh铆)銆傚墖瀵�(sh铆)闅涢€熷害=157.5/2.5=63鍗冪背/灏忔檪(sh铆)

4.绛旀锛欰

銆愯В鏋愩€戯細鏂规硶涓€锛氳鎯宠常鍑虹殑鐩￠噺澶�锛屽墖鍓╀綑鎳�(y墨ng)鐩￠噺灏�銆傚亣瑷�(sh猫)鍙▊鍓╀綑x鐡�锛岃槆鎵撴按鍓╀綑y鐡�锛屾牴鎿�(j霉)鍓╀綑鐨勫彲妯傜附鍍�(ji脿)鑸囪槆鎵撴按鐩哥瓑锛屽彲鍒楀嚭鏂圭▼3x=3.5y锛屽墖x/y=7/6锛屽彲鎺ㄥ嚭x鏄�7鐨勫€嶆暩(sh霉)锛寉鏄�6鐨勫€嶆暩(sh霉)銆倄鏈€灏忕偤7锛屾鏅�(sh铆)y鐐�6锛屾晠鍓╀綑鐨勭摱鏁�(sh霉)鏈€灏戠偤13鐡�銆傜敱浜庡彲妯傚拰铇囨墦姘村叡鏈�20+15=35鐡讹紝鍥犳璩ｅ嚭鍘荤殑鏈€澶氱偤35-13=22鐡�銆�

鏂规硶浜岋細鐢遍鎰忓墿浣欑附鍍�(ji脿)鐩哥瓑锛屾牴鎿�(j霉)绺藉児(ji脿)鐩哥瓑锛岄姺閲忚垏鍠児(ji脿)鎴愬弽姣斻€傚凡鐭ュ彲妯傚柈鍍�(ji脿):铇囨墦姘村柈鍍�(ji脿)=3:3.5=6:7锛屽墖鍓╀綑鍙▊鏈€灏戠偤7鐡�锛屽墿浣欒槆鎵撴按鏈€灏戠偤6鐡�锛岄偅涔堣常鎺夊彲妯傛渶澶氱偤20-7=13鐡�锛岃常鎺夎槆鎵撴按鏈€澶氱偤15-6=9鐡�锛屽叐绋２鏂欏悎瑷�(j矛)鏈€澶氳常鍑轰簡22鐡�銆傛晠姝ｇ⒑绛旀鐐篈

5.绛旀锛欱

銆愯В鏋愩€戯細瑷�(sh猫)涔欐瘡澶╁畬鎴恱浠剁Ξ鍝侊紝鍓囩敳姣忓ぉ瀹屾垚(x+10)浠剁Ξ鍝�锛屾牴鎿�(j霉)椤屾剰鍙煡(x+10)x9+x(9-1)=600浠�,瑙ｅ緱x=30浠�锛屽嵆鐢叉瘡澶╃敓鐢�(ch菐n)x+10=40浠�锛屼箼姣忓ぉ鐢熺敘(ch菐n)30浠讹紝鐢�銆佷箼鍏╀汉鍏卞悓宸ヤ綔涓€澶╁畬鎴�40+30=70浠躲€傛晠姝ｇ⒑绛旀鐐築

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璩囨枡涓嬭級绮鹃伕瑾茬▼ 鑰佸斧鐩存挱鐪熼绶寸繏(x铆)

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