x
y
O
x
y
O
x
y
O
x
y
O
0
8
-
0
9
瀛?/p>
骞?/p>
楂?/p>
涓�
鏁?/p>
瀛?/p>
蹇?/p>
淇?/p>
2
妯?/p>
鍧?/p>
鑰?/p>
璇?/p>
鏃堕棿锛?/p>
120
鍒嗛挓
婊″垎锛?/p>
150
鍒?/p>
绗厾鍗?/p>
(
閫夋嫨棰?/p>
婊″垎
60
鍒?/p>
)
涓�銆侀�夋嫨棰?/p>
锛堟湰澶ч鍏?/p>
12
灏忛锛屾瘡棰?/p>
5
鍒嗭紝鍏?/p>
60
鍒嗭紝灏嗙瓟妗堝～鍦ㄧ瓟棰樺嵎鍐咃級
1
锛庡鍥炬槸姝ｆ柟浣撶殑骞抽潰灞曞紑鍥撅紝鍒欏湪杩欎釜姝ｆ柟浣撲腑锛?/p>
鈼?
1
BM
涓?/p>
ED
骞宠
鈼?/p>
2
CN
涓?/p>
BE
鏄紓闈㈢洿绾?/p>
鈼?
3
CN
涓?/p>
BM
鎴?/p>
60
o
瑙?/p>
鈼?/p>
4
DM
涓?/p>
BN
鏄紓闈㈢洿绾?/p>
浠ヤ笂鍥涗釜鍛介涓紝姝ｇ‘鍛介鐨勫簭鍙锋槸
(
)
A
锛庘棆
1
銆佲棆
2
銆佲棆
3
B
锛庘棆
2
銆佲棆
4
C
锛庘棆
3
銆佲棆
4
D
锛庘棆
2
銆佲棆
3
銆佲棆
4
2
锛?/p>
鑻ュ渾鏌便�?/p>
鍦嗛敟鐨勫簳闈㈢洿寰勫拰楂橀兘绛変簬鐞冪殑鐩村緞锛?/p>
鍒欏渾鏌便�?
鍦嗛敟銆?/p>
鐞冪殑
浣撶Н鐨勬瘮涓猴紙
锛?/p>
A. 1:2:3
B.2
锛?/p>
3
锛?/p>
4
C.3:2:4
D.3:1:2
3
锛庤
m
銆?/p>
n
鏄袱鏉′笉鍚岀殑鐩寸嚎锛?/p>
,
,
飦?/p>
飦?/p>
飦?/p>
鏄笁涓笉鍚岀殑骞抽潰锛岀粰鍑轰笅鍒楀洓涓懡棰橈細
鈶犺嫢
m
飦?/p>
飦?/p>
锛?/p>
n
/
/
飦?/p>
锛屽垯
m
n
飦?/p>
鈶¤嫢
飦?/p>
飦?/p>
/
/
锛?/p>
飦?/p>
飦?/p>
/
/
锛?/p>
m
飦?/p>
飦?/p>
锛屽垯
m
飦?/p>
飦?/p>
鈶㈣嫢
m
/
/
飦?/p>
锛?/p>
n
/
/
飦?/p>
锛屽垯
m
n
/
/
鈶ｈ嫢
飦?/p>
飦?/p>
飦?/p>
锛?/p>
飦?/p>
飦?/p>
飦?/p>
锛屽垯
//
飦?/p>
飦?/p>
鍏朵腑姝ｇ‘鍛介鐨勫簭鍙锋槸
(
)
A
锛庘憼鍜屸憽
B
锛庘憽鍜屸憿
C
锛庘憿鍜屸懀
D
锛庘憼鍜屸懀
4
銆佽繃鐐癸紙
1
锛?/p>
2
锛変笖涓庡師鐐圭殑璺濈鏈�澶х殑鐩寸嚎鏂圭▼鏄紙
锛?/p>
锛?/p>
A
锛?/p>
2x+y-4=0
B
锛?/p>
x+2y-5=0
C
锛?/p>
x+3y-7=0
D
锛?/p>
3x+y-5=0
5
銆佷袱鏉″紓闈㈢洿绾垮湪鍚屼竴骞抽潰鐨勬鎶曞奖涓嶅彲鑳芥槸锛?/p>
锛?/p>
锛?/p>
A
锛庝袱鏉″钩琛岀洿绾?/p>
B
锛庝袱鏉＄浉浜ょ洿绾?/p>
C
锛庝竴涓偣鍜屼竴鏉＄洿绾?/p>
D
锛庝袱涓偣
6
鍦ㄥ悓涓�鐩磋鍧愭爣绯讳腑锛岃〃绀虹洿绾?/p>
y
ax
飥?/p>
涓?/p>
y
x
a
飥?/p>
飥?/p>
姝ｇ‘鐨勬槸锛?/p>
锛?/p>
锛?/p>
A
B
C
D
7
銆佸钩琛屼簬鐩寸嚎
2x-y+1=0
涓斾笌鍦?/p>
x
2
+y
2
=5
鐩稿垏鐨勭洿绾跨殑鏂圭▼鏄紙
锛?/p>
锛?/p>
A
锛?/p>
2x
锛?/p>
y+5=0
锛?/p>
B
锛?/p>
2x
锛?/p>
y
锛?/p>
5=0
锛?/p>
C
锛?/p>
2x
锛?/p>
y+5=0
鎴?/p>
2x
锛?/p>
y
锛?/p>
5=0
锛?/p>
D
锛?/p>
2x
锛?/p>
y+5=0
鎴?/p>
2x
锛?/p>
y
锛?/p>
5=0
8
涓�骞抽潰鎴竴鐞冨緱鍒扮洿寰勬槸
6cm
鐨勫渾闈紝鐞冨績鍒拌繖涓钩闈㈢殑璺濈鏄?/p>
4cm
锛屽垯璇ョ悆鐨勪綋绉槸
(
)
A
锛?
3
100
3
cm
飦?/p>
B
锛?/p>
3
208
3
cm
飦?