2022骞翠簨妤�(y猫)鍠綅鑰冭│鑱锋脯姣忔棩涓€绶达細鏁�(sh霉)閲忛棞(gu膩n)绯荤繏(x铆)椤屽強绛旀瑙ｆ瀽(2鏈�9鏃�)
鐎忚
鏀惰棌
2022骞翠簨妤�(y猫)鍠綅鑰冭│鑱锋脯姣忔棩涓€绶达細鏁�(sh霉)閲忛棞(gu膩n)绯荤繏(x铆)椤屽強绛旀瑙ｆ瀽(2鏈�9鏃�)
渚�1
杈﹀叕瀹や汉鍝′娇鐢ㄧ磪銆佽棈(l谩n)鍏╃ó椤忚壊鐨勬枃浠惰瑁�29浠界浉鍚岀殑鏂囦欢銆傛瘡鍊�(g猫)绱呰壊鏂囦欢琚嬪彲瑁�7浠芥枃浠讹紝姣忓€�(g猫)钘�(l谩n)鑹叉枃浠惰鍙4浠芥枃浠�銆傝浣挎瘡鍊�(g猫)鏂囦欢琚嬮兘鎭板ソ瑁濇豢锛岄渶瑕佺磪鑹�銆佽棈(l谩n)鑹叉枃浠惰鍒嗗垾鐐�()鍊�(g猫)?
A:1銆�6 B锛�2銆�4 C锛�4銆�1 D锛�3銆�2
銆愯В鏋愩€�D銆傚亣瑷�(sh猫)绱呰壊鏂囦欢琚媥鍊�(g猫)锛岃棈(l谩n)鑹叉枃浠惰y鍊�(g猫)锛屼娇姣忓€�(g猫)鏂囦欢琚嬮兘鎭板ソ瑁濇豢鍙緱7x+4x=29銆備唬鍏銆丅銆丆閬搁爡(xi脿ng)閮戒笉绗﹀悎锛屾晠閬告搰D閬搁爡(xi脿ng)銆傚彟瑙ｏ細鍥爔銆亂鍙兘鐐烘鏁存暩(sh霉)锛屾墍浠�4y蹇呯偤鍋舵暩(sh霉)锛屽張鍥�29鐐哄鏁�(sh霉)锛岃浣跨瓑寮忔垚绔�锛�7x蹇呯偤濂囨暩(sh霉)锛屽嵆x鐐哄鏁�(sh霉)锛屽彧鏈堿銆丏绗﹀悎銆備唬鍏閬搁爡(xi脿ng)锛寉涓嶆槸鏁存暩(sh霉)锛屼笉绗﹀悎椤屾剰锛屾晠绛旀閬窪銆�
鍥犳暩(sh霉)閲忛棞(gu膩n)绯婚兘鏄柈閬搁锛屽湪娌掓湁鍏跺畠鎬濊矾鐨勬儏娉佷笅锛屾渶蹇殑瑙ｉ鏂规硶灏辨槸鐩存帴绲�(ji茅)鍚堥伕闋�(xi脿ng)閫�(j矛n)琛屼唬鍏ユ眰瑙�銆備絾閮ㄥ垎椤岀洰閫氶亷浠ｅ叆杓冪偤楹荤叐锛屾垜鍊戦倓鍙互鐢ㄥ鍋舵€ч€�(j矛n)琛岃В椤岋細濂囨暩(sh霉)+濂囨暩(sh霉)=鍋舵暩(sh霉)锛屽伓鏁�(sh霉)+鍋舵暩(sh霉)=鍋舵暩(sh霉)锛屽鏁�(sh霉)+鍋舵暩(sh霉)=濂囨暩(sh霉)锛屽埄鐢ㄦ鎬ц唱(zh矛)閫�(j矛n)琛屾眰瑙�銆�
渚�2
灏忓嫉鐨勫瀛愬嚭鐢熺殑鏈堜唤涔樹互29锛屽嚭鐢熺殑鏃ユ湡涔樹互24锛屾墍寰楃殑鍏╁€�(g猫)涔樼⿳鍔犺捣渚嗗墰濂界瓑浜�900銆傚晱瀛╁瓙鍑虹敓鍦ㄥ摢涓€鍊�(g猫)瀛ｅ害?
A锛氱涓€瀛ｅ害 B锛氱浜屽搴� C锛氱涓夊搴� D锛氱鍥涘搴�
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鎵撳崱浜烘暩(sh霉)
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