鍢夊叴甯備簲鏍?/p>
2014-2015
瀛﹀勾绗簩瀛︽湡鏈熶腑鑱旇�?/p>
涓冨勾绾ф暟瀛﹁瘯鍗?/p>
鍛介鍗曚綅锛氱涓垎鏍?/p>
鍛介浜猴細钂嬬帀鑾?/p>
鏍稿浜猴細鍊缓鑽?/p>
涓�銆侀�夋嫨棰橈紙姣忛
3
鍒嗭紝鍏?/p>
30
鍒嗭級
1
锛庡鍥撅紝鐩寸嚎
AB
鈭?/p>
CD
锛?/p>
AF
浜?/p>
CD
浜庣偣
E
锛屸垹
CEF
=140掳
锛?/p>
鍒欌垹
A
绛変簬锛?/p>
锛?/p>
A
锛?/p>
35掳
B
锛?/p>
40掳
C
锛?/p>
45掳
D
锛?/p>
50掳
2
锛庣敤绉戝璁版暟鏂规硶琛ㄧず
0000907
.
0
锛屽緱锛?/p>
锛?/p>
A
锛?/p>
4
10
07
.
9
飥?/p>
飩?/p>
B
锛?/p>
6
10
7
.
90
飥?/p>
飩?/p>
C
锛?/p>
5
10
07
.
9
飥?/p>
飩?/p>
D
锛?/p>
7
10
7
.
90
飥?/p>
飩?/p>
3
锛庝笅鍒楁柟绋嬫槸浜屽厓涓�娆℃柟绋嬬殑鏄紙
锛?/p>
A
锛?/p>
2x + y = 3z
B
锛?/p>
2x
鈥?
y
1
=2
C
锛?/p>
2xy
鈥?/p>
3y = 0
D
锛?/p>
3x
鈥?/p>
5y=2
4
锛庝笅鍒楄绠椾腑锛屾纭殑鏄?/p>
(
)
A
锛?/p>
a
路
a
2
=
a
2
B
锛?/p>
(
x
2
)
3
=
x
5
C
锛?/p>
(2
x
3
)
2
=6
x
3
D
锛?/p>
2
a
+3
a
=5
a
5
锛?/p>
濡傚浘鎵�绀虹殑涓ゆ灦澶╁钩淇濇寔骞宠 锛?/p>
锛?/p>
鈥?/p>
姣忎釜鏋滃喕鐨勮川閲忎篃鐩哥瓑锛?/p>
鍒欎竴鍧楀阀鍏嬪姏鐨勮川閲忔槸
锛?/p>
锛?/p>
A
锛?/p>
20g
B
锛?/p>
25g
C
锛?/p>
15g
D
锛?/p>
30g
6
锛庝笅鍒椾簩椤瑰紡涓紝鑳界敤骞虫柟宸叕寮忓垎瑙ｅ洜寮忕殑鏄紙
锛?/p>
A
锛?/p>
x
2
锛?/p>
4y
2
B
锛庯紞
4y
2
锛?/p>
x
2
C
锛庯紞
x
2
锛?/p>
4y
2
D
锛?/p>
x
锛?/p>
4y
2
7
锛庝笅鍒楀浘褰腑锛岀敱
AB
CD
鈭?/p>
锛岃兘寰楀埌
1
2
飪?/p>
飥?/p>
飪?/p>
鐨勬槸
锛?/p>
锛?/p>
8
锛庡凡鐭モ攤
2x
锛?/p>
y
锛?/p>
3鈹?
锛?/p>
2x+y+11
锛?/p>
2
=0
锛屽垯锛?/p>
锛?/p>
A
锛?/p>
2
1
x
y
飥?/p>
飪?/p>
飪?/p>
飥?/p>
飪?/p>
B
锛?/p>
0
3
x
y
飥?/p>
飪?/p>
飪?/p>
飥?/p>
飥?/p>
飪?/p>
C
锛?/p>
2
7
x
y
飥?/p>
飥?/p>
飪?/p>
飪?/p>
飥?/p>
飥?/p>
飪?/p>
D
锛?/p>
1
5
x
y
飥?/p>
飥?/p>
飪?/p>
飪?/p>
飥?/p>
飥?/p>
飪?
9
锛庡鍥撅紝鐢层�佷箼銆佷笝銆佷竵鍥涗綅鍚屽缁欏嚭浜嗗洓绉嶈〃绀鸿闀挎柟褰㈤潰绉殑澶氶」寮忥細鈶?/p>
(2
a
+
b
)(
m
+
n
);
鈶?/p>
2
a
(
m
+
n
)+
b
(
m
+
n
);
鈶?/p>
m
(2
a
+
b
)+
n
(2
a
+
b
);
鈶?/p>
2
am
+2
an
+
bm
+
bn
锛屼綘璁や负鍏朵腑姝ｇ‘鐨勬湁锛?/p>
锛?/p>
A
C
B
D
1
2
A
C
B
D
1
2
A
锛?/p>
B
锛?/p>
1
2
A
C
B
D
C
锛?/p>
B
D
C
A
D
锛?/p>
1
2