2018
骞村洓宸濈渷涔愬北甯備腑鑰冩暟瀛﹁瘯鍗?/p>
涓�銆侀�夋嫨棰橈細鏈ぇ棰樺叡
10
灏忛锛屾瘡灏忛
3
鍒嗭紝鍏?/p>
30
鍒嗭紝鍦ㄦ瘡灏忛缁欏嚭鐨勫洓涓�夐」涓紝鍙湁涓�涓�夐」绗﹀悎
棰樼洰瑕佹眰
1
锛庯梗
2
鐨勭浉鍙嶆暟鏄紙
锛?/p>
A
锛庯梗
2
B
锛?/p>
2
C
锛?/p>
D
锛庯梗
瑙ｏ細锕?/p>
2
鐨勭浉鍙嶆暟鏄?/p>
2
锛?/p>
鏁呴�?/p>
B
锛?/p>
2
锛庡鍥炬槸鐢遍暱鏂逛綋鍜屽渾鏌辩粍鎴愮殑鍑犱綍浣擄紝瀹冪殑淇鍥炬槸锛?/p>
锛?/p>
A
锛?/p>
B
锛?/p>
C
锛?/p>
D
锛?/p>
瑙ｏ細浠庝笂杈圭湅澶栭潰鏄鏂瑰舰锛岄噷闈㈡槸娌℃湁鍦嗗績鐨勫渾锛?/p>
鏁呴�?/p>
A
锛?/p>
3
锛庢柟绋嬬粍
=
=x
+
y
锕?/p>
4
鐨勮В鏄紙
锛?/p>
A
锛?
B
锛?
C
锛?
D
锛?
瑙ｏ細鐢遍鍙緱锛?/p>
锛屾秷鍘?/p>
x
锛屽彲寰?/p>
2
锛?/p>
4
锕?/p>
y
锛?/p>
=3y
锛岃В寰?/p>
y=2
锛屾妸
y=2
浠ｅ叆
2x=3y
锛屽彲寰?/p>
x=3
锛屸埓鏂圭▼缁勭殑瑙ｄ负
锛?/p>
鏁呴�?/p>
D
锛?/p>
4
锛庡鍥撅紝
DE
鈭?/p>
FG
鈭?/p>
BC
锛岃嫢
DB=4FB
锛屽垯
EG
涓?/p>
GC
鐨勫叧绯绘槸锛?/p>
锛?/p>