2
3
2017
骞翠腑鑰冨鑰冧笓棰樺涔狅細涓�鍏冧竴娆℃柟绋?/p>
涓�銆佸崟閫夐
1
銆侊紙2016鈥㈠ぇ杩烇級鏂圭▼
2x+3=7
鐨勮В鏄紙
锛?/p>
A
銆?/p>
x=5
B
銆?/p>
x=4
C
銆?/p>
x=3.5
D
銆?/p>
x=2
2
銆侊紙2016鈥㈡ⅶ宸烇級涓�鍏冧竴娆℃柟绋?/p>
3x
锕?/p>
3=0
鐨勮В鏄紙
锛?/p>
A
銆?/p>
x=1
B
銆?/p>
x=
锕?/p>
1
C
銆?/p>
x=
D
銆?/p>
x=0
3
銆佽嫢鍏充簬
x
鐨勬柟绋嬶紙
k-1
锛?/p>
x
2
+x-1=0
鏄竴鍏冧竴娆℃柟绋嬶紝鍒?/p>
k=(
)
A
銆?/p>
0
B
銆?/p>
1
C
銆?/p>
2
D
銆?/p>
3
4
銆侊紙2016鈥㈡嘲瀹夛級褰?/p>
1
鈮?/p>
x
鈮?/p>
4
鏃讹紝
mx
锕?/p>
4
锛?/p>
0
锛屽垯
m
鐨勫彇鍊艰寖鍥存槸锛?/p>
锛?/p>
A
銆?/p>
m
锛?/p>
1
B
銆?/p>
m
锛?/p>
1
C
銆?/p>
m
锛?/p>
4
D
銆?/p>
m
锛?/p>
4
5
銆佸凡鐭ユ柟绋?/p>
2x-3=
+x
鐨勮В婊¤冻
|x|-1=0
锛屽垯
m
鐨勫�兼槸锛?/p>
锛?/p>
A
銆?/p>
-6
B
銆?/p>
-12
C
銆?/p>
-6
涓?/p>
-12
D
銆佷换浣曟暟
6
銆侊紙2016鈥㈠寘澶达級鑻?/p>
2
锛?/p>
a+3
锛夌殑鍊间笌
4
浜掍负鐩稿弽鏁帮紝鍒?/p>
a
鐨勫�间负锛?/p>
锛?/p>
A
銆侊梗
1
B
銆侊梗
C
銆侊梗
5
D
銆?/p>