1
/
8
灞变笢鐪?/p>
2019
骞存櫘閫氶珮鏍℃嫑鐢燂紙鏄ュ锛夎�冭瘯
鏁板璇曢
1
锛庢湰璇曞嵎鍒嗗嵎涓�锛堥�夋嫨棰橈級鍜屽嵎浜岋紙闈為�夋嫨棰橈級涓ら儴鍒嗭紝婊″垎
120
鍒嗭紝鑰冭瘯鏃堕棿
120
鍒嗛挓銆?/p>
鑰冪敓娓呭湪绛旈鍗′笂绛旈锛岃�冭瘯缁撴潫鍚庯紝璇峰皢鏈瘯鍗峰拰绛旈鍗′竴骞朵氦鍥炪�?/p>
2
锛庢湰娆¤�冭瘯鍏佽浣跨敤鍑芥暟鍨嬭绠楀櫒锛屽嚒浣跨敤璁＄畻鍣ㄧ殑棰樼洰锛岄櫎棰樼洰鏈夊叿浣撹姹傚锛屾渶鍚庣粨鏋?/p>
绮剧‘鍒?/p>
0.01
銆?/p>
鍗蜂竴锛堥�夋嫨棰樺叡
60
鍒嗭級
涓�銆侀�夋嫨棰橈紙鏈ぇ棰?/p>
20
涓皬棰橈紝姣忓皬棰?/p>
3
鍒嗭紝鍏?/p>
60
鍒嗐�傚湪姣忓皬棰樺垪鍑虹殑鍥涗釜閫夐」涓紝鍙湁
涓�椤圭鍚堥鐩姹傦紝璇峰皢绗﹀悎棰樼洰瑕佹眰鐨勯�夐」瀛楁瘝浠ｅ彿閫夊嚭锛庡苟濉秱鍦ㄧ瓟棰樺崱涓婏級
1.
宸茬煡闆嗗悎
M={0,1}
锛?/p>
N={1,2}
锛屽垯
M
鈭?/p>
N
绛変簬锛?/p>
锛?/p>
A. {1}
B.
{0,2}
C.
{0,1,2}
D.
飪?/p>
2.
鑻ュ疄鏁?/p>
a
锛?/p>
b
婊¤冻
ab>0
锛?/p>
a+b>0
锛屽垯涓嬪垪閫夐」姝ｇ‘鐨勬槸锛?/p>
锛?/p>
A.
a>0
锛?/p>
b>0
B.
a>0
锛?/p>
b<0
C.
a<0
锛?/p>
b>0
D. a<0
锛?/p>
b<0
3.
宸茬煡鎸囨暟鍑芥暟
y=a
x
锛?/p>
瀵规暟鍑芥暟
y=log
b
x
鐨勫浘鍍忓鍥炬墍绀猴紝
鍒欎笅鍒楀叧绯诲紡姝ｇ‘鐨勬槸
锛?/p>
锛?/p>
A.
0<a<b<1
B.
0<a<1<b
C.
0<b<1<a
D. a<0<1<b
4.
宸茬煡鍑芥暟
f(x)=x
3
+x
锛岃嫢
f(a)=2
锛屽垯
f(-a)
鐨勫�兼槸锛?/p>
锛?/p>
A. -2
B. 2
C.
-10
D. 10
5.
鑻ョ瓑宸暟鍒?/p>
{a
n
}
鐨勫墠
7
椤瑰拰涓?/p>
70
锛屽垯
a
1
+a
7
绛変簬锛?/p>
锛?/p>
A.
5
B.
10
C.
15
D. 20
6.
濡傚浘鎵�绀猴紝宸茬煡鑿卞舰
ABCD
鐨勮竟闀挎槸
2
锛屼笖鈭?/p>
DAB
=60掳
锛屽垯
AB
AC
飪?/p>
鐨勫�兼槸锛?/p>
锛?/p>
A.
4
B.
4
2
3
飥?/p>
C. 6
D.
4
2
3
飥?/p>
y
x
y
O
y=a
x
y=log
b
绗?/p>
3
棰?/p>
鍥?/p>
A
B
C
D
绗?/p>
6
棰?/p>
鍥?/p>