1
鏂扮枂宸村窞钂欏彜鏃忛珮绾т腑瀛?/p>
2014-2015
瀛﹀勾鍏勾绾ф暟瀛︿笂瀛︽湡鏈熸湯鑰?
璇曡瘯棰?/p>
1
銆佷竴涓笁瑙掑舰鐨勪袱杈归暱鍒嗗埆涓?/p>
3cm
鍜?/p>
7cm,
鍒欐涓夎褰㈢殑绗笁杈圭殑闀垮彲鑳芥槸
(
)
A.3 cm
B.4cm
C.7cm
D.11cm
2
銆佷笅鍒楄繍绠椾腑锛屾纭殑鏄紙
锛?/p>
銆?/p>
A.a
路
a
2
=a
2
B.(a
2
)
2
=a
4
C.a
2
路
a
3
=a
6
D.(a
2
b)
3
=a
2
路
b
3
3
銆?/p>
濡傚浘
,
宸茬煡鐐?/p>
A
,D,C,F
鍦ㄥ悓涓�鏉＄洿绾?/p>
涓?/p>
,AB=DE,BC=EF,
瑕佷娇鈻?/p>
ABC
鈮屸柍
DEF,
杩橀渶瑕佹坊鍔犱竴涓潯浠舵槸
(
)
A.
鈭?/p>
BCA=
鈭?/p>
F
B.
鈭?/p>
B=
鈭?/p>
E
C.BC
鈭?/p>
EF
D.
鈭?/p>
A=
鈭?/p>
EDF
4
銆佷笅鍒楀悇寮忕敱宸﹁竟鍒板彸杈圭殑鍙樺舰涓紝鏄垎瑙ｅ洜寮忕殑涓猴紙
锛?/p>
銆?/p>
A
銆?/p>
a (x + y) =a x +
a y B
銆?/p>
x
2
锛?/p>
4x+4=x(x
锛?/p>
4)+4
C
銆?/p>
10x
2
锛?/p>
5x=5x(2x
锛?/p>
1) D
銆?/p>
x
2
锛?/p>
16+3x=(x
锛?/p>
4)(x+4)+3x
5
锛庝笅鍒楀浘褰腑锛屽睘浜庤酱瀵?/p>
绉板浘褰㈢殑鏄紙
锛?/p>
銆?/p>
6
銆佸凡鐭?/p>
m
6
x
飥?/p>
锛?/p>
3
n
x
飥?/p>
锛屽垯
2
m
n
x
飥?/p>
鐨勫�间负锛?/p>
锛?/p>
A
銆?/p>
9 B
銆?
4
3
C
銆?/p>
12 D
銆?/p>
3
4
7
銆佸鍥撅紝鈻?/p>
ABC
涓竟
AB
鐨勫瀭鐩村钩鍒嗙嚎鍒嗗埆浜?/p>
BC
銆?/p>
AB
浜庣偣
D
銆?/p>
E
锛?/p>
AE=3cm
锛屸柍
ADC鈥?/p>
鐨勫懆闀夸负
9cm
锛屽垯鈻?/p>
ABC
鐨勫懆闀挎槸
锛?/p>
锛?/p>
8
銆佷娇鍒嗗紡
鏈夋剰涔夌殑
x
鐨勫彇鍊兼槸
(
)
A
锛?/p>
10cm B
锛?/p>
12cm
C
锛?/p>
15cm D
锛?/p>
17cm