1
姘戜箰浜屼腑
2019
骞寸瀛︽湡鏈熸湯鑰冭瘯璇曞嵎
涓冨勾绾ф暟瀛?/p>
锛堟弧鍒嗭細
150
鍒?/p>
鏃堕棿锛?/p>
150
鍒嗛挓锛?/p>
涓�銆侀�夋嫨棰橈紙鏈鍏?/p>
10
灏忛锛屾瘡灏忛
3
鍒嗭紝鍏?/p>
30
鍒嗭級
1
锛庯梗
2
鐨勫�掓暟鏄紙
锛?/p>
A
锛庯梗
2
B
锛?/p>
2
C
锛?/p>
D
锛?/p>
锕?/p>
2.
涓嬪垪鍚勫紡鐨勮绠楋紝姝ｇ‘鐨勬槸
( )
A
锛?/p>
ab
b
a
5
2
3
飥?/p>
飥?/p>
B
锛?/p>
mn
mn
n
m
2
2
4
2
2
飥?/p>
飥?/p>
C
锛?/p>
x
x
x
5
7
12
飥?/p>
飥?/p>
飥?/p>
飥?/p>
D
锛?/p>
2
3
5
2
2
飥?/p>
飥?/p>
y
y
3.
宸茬煡绾挎
AB=10cm
锛岀偣
C
鏄洿绾?/p>
锛庯紟
AB
锛?/p>
锛?/p>
涓婁竴鐐癸紝
BC=4cm
锛岃嫢
M
鏄?/p>
AC
鐨勪腑鐐?/p>
,N
鏄?/p>
BC
鐨勪腑鐐癸紝鍒欑嚎娈?/p>
MN
鐨勯暱搴︽槸锛?/p>
锛?/p>
.
A
銆?/p>
5cm B
銆?/p>
3cm C
銆?/p>
5cm
鎴?/p>
3cm D
銆?/p>
7cm
4.
宸茬煡
b
a
m
2
25
飥?/p>
鍜?/p>
4
3
7
a
b
n
飥?/p>
鏄悓绫婚」锛屽垯
n
m
飥?/p>
鐨勫�兼槸锛?/p>
锛?/p>
.
A
銆?/p>
2 B
銆?/p>
3 C
銆?/p>
4 D
銆?/p>
5
5.
宸茬煡浠ｆ暟寮?/p>
x
锛?/p>
2y
鐨勫�兼槸
3
锛屽垯浠ｆ暟寮?/p>
2x
锛?/p>
4y
锛?/p>
1
鐨勫�兼槸锛?/p>
锛?/p>
A. 1 B. 4 C. 7 D.
涓嶈兘纭畾
6
锛庝笅鍒楄繍绠椾腑缁撴灉姝ｇ‘鐨勬槸锛?/p>
锛?/p>
A
锛?/p>
6
3
3
路
x
x
x
飥?/p>
锛?/p>
B
锛?/p>
4
2
2
5
2
3
x
x
x
飥?/p>
飥?/p>
锛?/p>
C
锛?/p>
5
3
2
)
(
x
x
飥?/p>
锛?/p>
D
锛?/p>
2
2
2
4
)
(
)
(
c
b
bc
bc
飥?/p>
飥?/p>
飥?/p>
飩?/p>
飥?/p>
7
锛庡凡鐭モ垹
AOB=70
掳
锛屸垹
BOC=30
掳
锛?/p>
OM
骞冲垎
AOB
锛?/p>
ON
骞冲垎鈭?/p>
BOC
锛屽垯鈭?/p>
MON=
A
锛?/p>
50
掳
B
锛?/p>
20
掳
C
锛?/p>
20
掳
鎴?/p>
50
掳
D
锛庝笉鑳界‘瀹?/p>
8.
濡傛灉鍏充簬
x
鐨勪竴鍏冧竴娆℃柟绋?/p>
2
x+a=x-
1
鐨勮В鏄?/p>
x=
-
4,
閭ｄ箞
a
鐨勫�间负锛?/p>
锛?/p>
A 3 B
5
C -5 D -13
9.
瑙傚療涓嬪垪鍚勫紡
飦?/p>
飦?/p>
锛?/p>
锛?nbsp;
锛?nbsp;
锛?nbsp;
锛?nbsp;
锛?nbsp;
锛?nbsp;
锛?nbsp;
6561
3
2187
3
729
3
243
3
81
3
27
3
9
3
3
3
8
7
6
5
4
3
2
1
飥?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
鏍规嵁涓婅堪
绠楀紡涓殑瑙勫緥锛屼綘璁や负
2008
2
鐨勬湯浣嶆暟瀛楁槸锛?/p>
锛夛紟
A
3
B
9
C
7
D
1
10
锛庝笅鍒楄绠楁纭殑鏄紙
锛?/p>
A
锛?/p>
0
6
6
飥?/p>
飩?/p>
a
a
B
锛?/p>
bc
bc
bc
飥?/p>
飥?/p>
飥?/p>
飩?/p>
飥?/p>
2
4
)
(
)
(
C
锛?/p>
10
6
4
y
y
y
飥?/p>
飥?/p>
D
锛?/p>
16
4
4
4
)
(
b
a
ab
飥?/p>
浜屻�佸～绌洪锛堟湰棰樺叡
10
灏忛锛屾瘡灏忛
4
鍒嗭紝鍏?/p>
40
鍒嗭級
棰樺彿
1
2
3
4
5
6
7
8
9
10
绛旀