鏁板璇曞嵎
涓冨勾绾ф暟瀛﹀亣鏈熶綔涓氾紙绗?/p>
1-2
绔狅級娴嬭瘯棰?/p>
鐝骇
濮撳悕
瀛﹀彿
寰楀垎
涓�銆侀�夋嫨棰橈紙姣忛
2
鍒嗭紝鍏?/p>
20
鍒嗭級
1
銆?/p>
绾挎
AB
涓婃湁鐐?/p>
C
锛?/p>
鐐?/p>
C
浣?/p>
AC:CB=2:3
锛?/p>
鐐?/p>
M
鍜岀偣
N
鍒嗗埆鏄嚎娈?/p>
AC
鍜岀嚎娈?/p>
CB
鐨勪腑鐐癸紝
鑻?/p>
MN=4
锛?/p>
鍒?/p>
AB
鐨勯暱鏄紙
锛?/p>
A 6
锛?/p>
B 8
锛?/p>
C 10
锛?/p>
D 12
2
銆佷笅鍒楀悇瀵规暟涓紝鏁板�肩浉绛夌殑鏄紙
锛?/p>
A
锛?/p>
2
7
涓?/p>
(
锛?/p>
2)
7
B
锛?/p>
3
2
涓?/p>
(
锛?/p>
3)
2
C
锛?/p>
3
脳
2
3
涓庯紞
3
2
脳
2 D
鈥?/p>
(
鈥?/p>
3)
2
涓庘�?/p>
(
鈥?/p>
2)
3
3
銆佸湪锛?/p>
5
锛岋紞
10
1
锛岋紞
3.5
锛岋紞
0.01
锛岋紞
2
锛岋紞
212
鍚勬暟涓紝鏈�澶х殑鏁版槸锛?/p>
锛?/p>
A
锛?/p>
12 B
锛?/p>
10
1
C
锛?/p>
0.01 D
锛?/p>
5
4
銆佸鏋滀竴涓暟鐨勫钩鏂逛笌杩欎釜鏁扮殑宸瓑浜?/p>
0
锛岄偅涔堣繖涓暟鍙兘鏄紙
锛?/p>
A 0 B
锛?/p>
1 C 1 D 0
鎴?/p>
1
5
銆佸鍥撅紝绾挎
AD=90cm
锛?/p>
B
銆?/p>
C
鏄繖鏉＄嚎娈典笂涓ょ偣锛?/p>
AC=70cm
锛屼笖
CD=
3
1
BC
锛屽垯
AB
鐨勯暱鏄紙
锛?/p>
A
銆?/p>
20cm. B
銆?/p>
15cm. C
銆?/p>
10cm. D
銆?/p>
8cm .
6
銆佽绠楋細
(
锛?/p>
2)
100
+(
锛?/p>
2)
101
鐨勬槸锛?/p>
锛?/p>
A 2
100
B
锛?/p>
1 C
锛?/p>
2 D
锛?/p>
2
100
7
銆佸鍥撅紝鈭?/p>
BOC=2
鈭?/p>
AOB
锛?/p>
OP
骞冲垎鈭?/p>
AOB
锛?/p>
宸茬煡鈭?/p>
AOP=12
潞锛屽垯鈭?/p>
POC=
锛?/p>
锛?/p>
A
銆?/p>
60
潞
. B
銆?/p>
72
潞
. C
銆?/p>
78
潞
. D
銆?/p>
84
潞
.
8
銆?/p>
閽熻〃涓婄殑鏃堕棿鎸囩ず涓轰袱鐐瑰崐锛?/p>
杩欐椂鏃堕拡鍜屽垎閽堜箣闂存墍褰㈢殑鎴愮殑
锛堝皬浜庡钩瑙掞級
瑙掔殑搴︽暟鏄?/p>
锛?/p>
锛?/p>
A
飦?
120
B
飦?
105
C
飦?
100
D
飦?
90
9
銆?/p>
涓嬪垪浠ｆ暟寮忎腑锛屽�间竴瀹氭槸姝ｆ暟鐨勬槸
( )
A
锛?/p>
x
2
B.|
锛?/p>
x+1| C.(
锛?/p>
x)
2
+2 D.
锛?/p>
x
2
+1
10
銆?/p>
宸茬煡绾挎
AB
锛?/p>
鍙嶅悜寤堕暱
AB
鍒?/p>
C
锛?/p>
浣?/p>
AC=
3
1
BC
锛?/p>
D
涓?/p>
AC
涓偣锛?/p>
鑻?/p>
CD=2
cm
锛?/p>
鍒?/p>
AB
绛変簬
锛?/p>
锛?/p>
A 4
cm
B 6
cm
C 8
cm
D 10
cm
浜屻�佸～绌洪锛堟瘡灏忛
2
鍒嗭紝鍏?/p>
20
鍒嗭級
11
銆佷竴骞㈠ぇ妤煎湴闈笂鏈?/p>
12
灞傦紝杩樻湁鍦颁笅瀹?/p>
2
灞傦紝濡傛灉鎶婂湴闈笂鐨勭涓�灞備綔涓哄熀鍑嗭紝璁颁负
0
锛岃
瀹氬悜涓婁负姝ｏ紝閭ｄ箞涔犳儻涓婂皢
2
妤艰涓?/p>
锛涘湴涓嬬涓�灞傝浣?/p>
锛涙暟锛?/p>
2
鐨?/p>
瀹為檯鎰忎箟涓?/p>
锛屾暟锛?/p>
9
鐨勫疄闄呮剰涔変负
銆?/p>
12
銆佸鏋滄暟杞翠笂鐨勭偣
A
瀵瑰簲鏈夌悊鏁颁负
-2
锛岄偅涔堜笌
A
鐐圭浉璺?/p>
3
涓崟浣嶉暱搴︾殑鐐规墍瀵瑰簲鐨勬湁鐞嗘暟涓?
___________
銆?/p>