鍐宠儨
2020
骞翠腑鑰冩暟瀛﹀帇杞撮鍏ㄦ彮绉?/p>
涓撻
03
涓�鍏冧簩娆℃柟绋嬪強搴旂敤
銆愯�冪偣
1
銆戜竴鍏冧簩娆℃柟绋嬬殑鏍圭殑姹傚�奸棶棰?/p>
銆愪緥
1
銆?/p>
锛?/p>
2019
鈥㈠叞宸烇級
x
锛?/p>
1
鏄叧浜?/p>
x
鐨勪竴鍏冧簩娆℃柟绋?/p>
x
2
+
ax
+2
b
锛?/p>
0
鐨勮В锛屽垯
2
a
+4
b
锛濓紙
锛?/p>
A
锛庯梗
2
B
锛庯梗
3
C
锛庯梗
1
D
锛庯梗
6
銆愮瓟妗堛�?/p>
A
銆愯В鏋愩�戞妸
x
锛?/p>
1
浠ｅ叆鏂圭▼
x
2
+
ax
+2
b
锛?/p>
0
寰?/p>
1+
a
+2
b
锛?/p>
0
锛?/p>
鎵�浠?/p>
a
+2
b
锛濓梗
1
锛?/p>
鎵�浠?/p>
2
a
+4
b
锛?/p>
2
锛?/p>
a
+2
b
锛夛紳
2
脳锛堬梗
1
锛夛紳锕?/p>
2
锛?/p>
鏁呴�夛細
A
锛?/p>
鐐圭潧
:
鏈鑰冩煡浜嗕竴鍏冧簩娆℃柟绋嬬殑瑙ｏ細鑳戒娇涓�鍏冧簩娆℃柟绋嬪乏鍙充袱杈圭浉绛夌殑鏈煡鏁扮殑鍊兼槸涓�鍏冧簩娆℃柟绋嬬殑
瑙ｏ紟
銆愬彉寮?/p>
1-1
銆?/p>
锛?/p>
2019
鈥㈤亗瀹侊級宸茬煡鍏充簬
x
鐨勪竴鍏冧簩娆℃柟绋嬶紙
a
锕?/p>
1
锛?/p>
x
2
锕?/p>
2
x
+
a
2
锕?/p>
1
锛?/p>
0
鏈変竴涓牴涓?/p>
x
锛?/p>
0
锛屽垯
a
鐨?
鍊间负锛?/p>
锛?/p>