鏁板璇曞嵎
楂橀偖甯?/p>
2019
鈥?/p>
2019
瀛﹀勾搴︾涓�瀛︽湡
鍏勾绾ф暟瀛︽湡鏈川閲忕洃娴嬭瘯鍗?/p>
濮撳悕
鎴愮哗
涓�銆侀�夋嫨棰橈細
锛堟瘡棰?/p>
3
鍒嗭紝鍏?/p>
24
鍒嗭級
1
銆佷笅鍒楁暟鎹腑涓嶆槸杩戜技鏁扮殑鏄?/p>
锛?/p>
锛?/p>
A
鏌愯瘝鍏稿叡鏈?/p>
1752
椤?/p>
B
鑼舵澂閲屽叡鏈?/p>
150
姣崌姘?/p>
C
灏忔晱璺?/p>
100
绫崇敤
13.5
绉?/p>
D
涓栫晫鎬讳汉鍙ｆ暟涓?/p>
62
浜?/p>
2
銆佽嫢
x
x
=
锛屽垯
x
=
(
)
A
0
B
1
C
0
鎴?/p>
1
D
0
鎴?/p>
1
卤
3
銆佽绠?
2
6
3
3
x
x
x
+
+
+
鐨勭粨鏋滄槸锛?/p>
锛?/p>
A
2
B
3
C
2
x
+
D
2
6
x
+
4
銆佸鏋?/p>
m
鏄换鎰忓疄鏁帮紝鍒欑偣
P
锛?/p>
m-4
锛?/p>
m+1
锛変竴瀹氫笉鍦?/p>
锛?/p>
锛?/p>
A
绗竴璞￠檺
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锛?/p>
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6
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(
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a
y
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y
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鍒欎笅鍒楃粨璁烘纭殑
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a>0
B
a<0
C
b=0
D
ab<0
7
銆佸鍥惧湪鍗曚綅姝ｆ柟褰㈢粍鎴愮殑缃戞牸涓爣鏈?/p>
AB
銆?/p>
CD
銆?/p>
EF
銆?/p>
GH
鍥涙潯绾挎锛屽叾涓兘鏋勬垚涓�
涓洿瑙掍笁瑙掑舰涓夎竟鐨勭嚎娈垫槸锛?/p>
锛?/p>
A
CD
銆?/p>
EF
銆?/p>
GH
B
AB
銆?/p>
EF
銆?/p>
GH
C
AB
銆?/p>
CD
銆?/p>
EF
D
GH
銆?/p>
AB
銆?/p>
CD
8
銆佸鍥撅紝鐐?/p>
D
銆?/p>
E
鍒嗗埆鍦?/p>
ABC
D
鐨勮竟
BC
銆?/p>
AC
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AB=AC
锛?/p>
AD=AE
锛屽垯锛?/p>
锛?/p>
A
褰?/p>
B
脨
涓哄畾鍊兼椂锛?/p>
CDE
脨
涓哄畾鍊?/p>
B
褰?/p>
1
CDE
琛屼负瀹氬�兼椂锛?
涓哄畾鍊?/p>
C
褰?/p>
2
CDE
琛?
涓哄畾鍊兼椂锛?/p>
涓哄畾鍊?/p>
D
3
C
D
E
琛?/p>
褰?/p>
涓哄畾鍊兼椂锛?
涓哄畾鍊?/p>
绗紪棰?/p>
绗紬棰?/p>
绗紭棰?/p>
浜屻�佸～绌洪锛?/p>
锛堟瘡棰?/p>
3
鍒嗭紝鍏?/p>
30
鍒嗭級
锛欍�佸凡鐭ョ瓑鑵颁笁瑙掑舰鐨勫懆闀夸负
16cm
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4cm
锛屽垯搴曡竟闀夸负
cm
銆?/p>
10
銆佸啓鍑轰竴涓珛鏂规牴姣?/p>
2
灏忕殑鍋舵暟
銆?/p>
11
銆佽嫢浠ｆ暟寮?
2
1
1
x
-
-
鐨勫�间负闆讹紝鍒?/p>
x
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C
E
A
D
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F
G
x
y
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A
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2
1
3
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A
C
D