2019
骞村北涓滅渷鍚勫湴甯備竴妯℃暟瀛﹁瘯棰樺垎绫绘眹缂栵紙鐞嗙锛?/p>
鏁板鏂囧寲
涓�銆侀�夋嫨棰?/p>
1.
锛堜复娌備竴妯?/p>
6
锛?/p>
璧电埥鏄笁鍥芥椂浠ｇ殑鏁板瀹躲�佸ぉ鏂囧瀹讹紝浠栦负銆婂懆楂�绠楃粡銆嬩竴涔︿綔搴忔椂锛屼粙
缁嶄簡鈥滃嬀鑲″渾鏂瑰浘鈥濓紝
浜︾О鈥滆档鐖藉鸡鍥锯�濓紝
鍥句腑鍖呭惈鍥涗釜鍏ㄧ瓑鐨勭洿瑙掍笁瑙掑舰鍙婁竴涓皬姝ｆ柟褰?/p>
(
闃村奖
)
锛庡鍥撅紝璁?/p>
AB
锛?/p>
BC=1
锛?/p>
3
锛岃嫢鍚戝鸡鍥惧唴闅忔満鎶涙幏
5000
棰楃背绮?/p>
(
澶у皬蹇界暐涓嶈
)
锛屽垯钀?/p>
鍦ㄥ皬姝ｆ柟褰?/p>
(
闃村奖
)
鍐呯殑绫崇矑鏁板ぇ绾︿负
A. 134
B. 67
C. 200
D. 250
銆愮瓟妗堛�?/p>
C
銆愬垎鏋愩�戞牴鎹鎰忥紝璁?/p>
AB=x
锛岀敤
x
琛ㄧず鍑哄皬姝ｆ柟褰㈢殑闈㈢Н鍜屽ぇ姝ｆ柟褰㈢殑闈㈢Н锛屽嵆鍙垽鏂嚭
钀藉湪闃村奖閮ㄥ垎鐨勭背绮掓暟閲忋�?/p>
銆愯В鏋愩�戣
AB=x
锛屽垯
BC=3x
鎵�浠?/p>
AC=4x
鎵�浠ュぇ姝ｆ柟褰㈢殑杈归暱涓?/p>
5x
灏忔鏂瑰舰涓庡ぇ姝ｆ柟褰㈢殑闈㈢Н姣斾负
鎵�浠ュ悜鍥惧唴闅忔満鎶涙幏
5000
棰楃背绮掞紝鍒欒惤鍦ㄥ皬姝ｆ柟褰?/p>
(
闃村奖
)
鍐呯殑绫崇矑鏁板ぇ绾︿负
5000脳
=200
鎵�浠ラ�?/p>
C
銆愮偣璇勩�戞湰棰樿�冩煡浜嗗嚑浣曟鍨嬫鐜囩殑姹傛硶锛屽睘浜庡熀纭�棰樸�?/p>
2.
锛堟綅鍧婁竴妯?/p>
11
锛?/p>
濡傚浘鎵�绀猴紝鍦ㄨ憲鍚嶇殑姹夎濉旈棶棰樹腑锛屾湁涓夋牴楂樺害鐩稿悓鐨勬煴瀛愬拰涓�浜涘ぇ灏?/p>
鍙婇鑹插悇涓嶇浉鍚岀殑鍦嗙洏锛?/p>
涓夋牴鏌卞瓙鍒嗗埆涓鸿捣濮嬫煴銆?/p>
杈呭姪鏌卞強鐩爣鏌?/p>
.
宸茬煡璧峰鏌变笂濂楁湁
涓渾
鐩橈紝杈冨ぇ鐨勫渾鐩橀兘鍦ㄨ緝灏忕殑鍦嗙洏涓嬮潰
.
鐜版妸鍦嗙洏浠庤捣濮嬫煴鍏ㄩ儴绉诲埌鐩爣鏌变笂锛岃鍒欏涓嬶細姣?/p>
娆″彧鑳界Щ鍔ㄤ竴涓渾鐩橈紝
涓旀瘡娆＄Щ鍔ㄥ悗锛?/p>
姣忔牴鏌变笂杈冨ぇ鐨勫渾鐩樹笉鑳芥斁鍦ㄨ緝灏忕殑鍦嗙洏涓婇潰锛?/p>
瑙勫畾
涓�涓渾鐩樹粠浠讳竴鏍规煴涓婄Щ鍔ㄥ埌鍙︿竴鏍规煴涓婁负涓�娆＄Щ鍔?/p>
.
鑻ュ皢
涓渾鐩樹粠璧峰鏌辩Щ鍔ㄥ埌鐩爣鏌?