2019
骞存綅鍧婂競楂樿�冩ā鎷熻�冭瘯
鐞嗙鏁板
鏈瘯鍗峰叡
4
椤碉紝鍒嗙
1
鍗?/p>
(
閫夋嫨棰?/p>
)
鍜岀鈪″嵎
(
闈為�夋嫨棰?/p>
)
涓ら儴鍒嗭紟鍏?/p>
150
鍒嗭紟鑰冭瘯鏃堕棿
120
鍒嗛挓锛?/p>
绗?/p>
1
鍗?/p>
(
閫夋嫨棰樺叡
60
鍒?/p>
)
娉ㄦ剰浜嬮」锛?/p>
1
锛庣瓟绗?/p>
I
鍗峰墠锛岃�冪敓鍔″繀灏嗚嚜宸辩殑濮撳悕銆佸噯鑰冭瘉鍙枫�佽�冭瘯绉戠洰鐢ㄩ搮绗旀秱鍐欏湪绛旈鍗′笂銆?/p>
2
锛庢瘡棰橀�夊嚭绛旀鍚庯紝鐢?/p>
2
B
閾呯瑪鎶婄瓟棰樺崱瀵瑰簲棰樼洰鐨勭瓟妗堟爣鍙锋秱榛戙�傚闇�鏀瑰姩锛岀敤姗＄毊
鎿﹀共鍑�鍚庯紝鍐嶆敼娑傚叾瀹冪瓟妗堟爣鍙枫�?/p>
涓�銆侀�夋嫨棰橈細鏈ぇ棰樺叡
12
灏忛锛屾瘡灏忛
5
鍒嗭紝鍏?/p>
60
鍒嗭紟鍦ㄦ瘡灏忛缁欏嚭鐨勫洓涓�夐」涓紝鍙?/p>
鏈変竴椤规槸绗﹀悎棰樼洰瑕佹眰鐨勶紟
1
锛庡凡鐭ラ泦鍚?/p>
A
涓烘暟闆嗭紝鍒欌�?/p>
A
鈭?/p>
{0
锛?/p>
1}={0}
鈥濇槸鈥?/p>
A={0}
鈥濈殑
A
锛庡厖鍒嗕笉蹇呰鏉′欢
B
锛庡繀瑕佷笉鍏呭垎鏉′欢
C
锛庡厖瑕佹潯浠?/p>
D
锛庢棦涓嶅厖鍒嗕篃涓嶅繀瑕佹潯浠?/p>
2
锛庤嫢澶嶆暟
i
i
a
飥?/p>
飥?/p>
1
涓虹函铏氭暟锛屽垯瀹炴暟
a
鐨勫�兼槸
A
锛?/p>
-1
B
锛?/p>
0
C
锛?/p>
1
D
锛?/p>
2
3
锛庢煇甯傝繘琛屼竴娆￠珮涓夋暀瀛﹁川閲忔娊鏍锋娴嬶紝鑰冭瘯鍚庣粺璁＄殑鎵�鏈夎�冪敓鐨勬暟瀛︽垚缁╂湇浠庢鎬?/p>
鍒嗗竷锛庡凡鐭ユ暟瀛︽垚缁╁钩鍧囧垎涓?/p>
90
鍒嗭紝
60
鍒嗕互涓嬬殑浜烘暟鍗?/p>
1 0
锛咃紝鍒欐暟瀛︽垚缁╁湪
90
鍒嗚嚦
120
鍒?/p>
涔嬮棿鐨勮�冪敓浜烘暟鎵�鍗犵櫨鍒嗘瘮绾︿负
A
锛?/p>
10
锛?/p>
B
锛?/p>
20
锛?/p>
C
锛?/p>
30
锛?/p>
D
锛?/p>
40
锛?/p>
4
锛庡凡鐭ヤ笉绛夊紡
| x+2 |+| x-3 |
鈮?/p>
a
鐨勮В闆嗕笉鏄┖闆嗭紝鍒欏疄鏁?/p>
a
鐨勫彇鍊艰寖鍥存槸
A
锛?/p>
a<5
B
锛?/p>
a
鈮?/p>
5
C
锛?/p>
a>5 D
锛?/p>
a
鈮?/p>
5
5
锛庡凡鐭ョ瓑姣旀暟鍒?/p>
{a
n
}
鐨勫叕姣斾负姝ｆ暟锛屼笖
a
3
a
9
=2a
5
2
锛?/p>
a
2
=2
锛屽垯
a
1
绛変簬
A
锛?/p>
1
B
锛?/p>
2
C
锛庝竴
2
D
锛?/p>
2
6
锛庡彸闈㈢殑绋嬪簭妗嗗浘杈撳嚭鐨?/p>
S
鍊兼槸
A
锛?/p>
2019
B
锛?/p>
-
2
1
C
锛?/p>
3
2
D
锛?/p>
3
7.
宸茬煡
f(x)=a
x-2
锛?/p>
g(x)=loga|x|(a>0
涓?/p>
a
鈮?/p>
1)
锛?/p>
鑻?/p>
f(4)
路
g(-4)<0
锛?/p>
鍒?
y=f(x)
锛?/p>
y=g(x)
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