2010
骞翠節骞寸骇鏂囩悊绉戣仈璧涜瘯鍗?/p>
(20)
鐝骇
___________
濮撳悕
_____________
涓�銆侀�夋嫨棰?/p>
1
锛庝笅鍒楀悇鏁颁腑锛屾棤鐞嗘暟鏄紙
锛?/p>
锛?/p>
A
锛?/p>
0.101001
锛?/p>
B
锛?/p>
0
锛?/p>
C
锛?/p>
5
锛?/p>
D
锛?/p>
2
3
飥?
2
锛庡鍥炬墍绀虹殑涓夎鍥捐〃绀虹殑鍑犱綍浣撴槸锛?/p>
锛?/p>
锛?/p>
A
锛夐暱鏂逛綋
锛?/p>
B
锛夋鏂逛綋
锛?/p>
C
锛夊渾鏌变綋
锛?/p>
D
锛変笁妫辨煴
3
锛庝笉绛夊紡缁?/p>
1
2
4
0
0
x
x
飥?/p>
飪?/p>
飪?
飥?/p>
飥?/p>
飪?/p>
飥?/p>
鐨勮В闆嗘槸锛?/p>
锛?/p>
锛?/p>
A
锛?/p>
x >
-
1
锛?/p>
B
锛?/p>
-
1
< x <
2
锛?/p>
C
锛?/p>
x <
2
锛?/p>
D
锛?/p>
x <
-
1
鎴?/p>
x >
2
4
锛庝笅鍒楀悇寮忚繍绠楁纭殑鏄紙
锛?/p>
锛?/p>
A
锛?/p>
2
2
4
3
2
5
a
a
a
飥?/p>
飥?/p>
锛?/p>
B
锛?/p>
2
2
(
3)
9
a
a
飥?/p>
飥?/p>
飥?/p>
锛?/p>
C
锛?/p>
2
3
5
(
)
a
a
飥?/p>
锛?/p>
D
锛?/p>
2
3
3
2
6
a
a
a
飪?/p>
飥?/p>
5
锛庡鍥炬槸涓�寮犵洿瑙掍笁瑙掑舰鐨勭焊鐗囷紝涓ょ洿瑙掕竟
AC
锛?/p>
6
cm
銆?/p>
BC
锛?/p>
8
cm
锛岀幇灏嗏柍
ABC
鎶樺彔锛屼娇
鐐?/p>
B
涓庣偣
A
閲嶅悎锛屾姌鐥曚负
DE
锛屽垯
BE
鐨勯暱涓猴紙
锛?/p>
锛?/p>
A
锛?/p>
4 cm
锛?/p>
B
锛?/p>
5 cm
锛?/p>
C
锛?/p>
6 cm
锛?/p>
D
锛?/p>
10 cm
6.
鏌愯姳鍥唴鏈変竴鍧椾簲杈瑰舰鐨勭┖鍦板鍥炬墍绀猴紝涓轰簡缇庡寲鐜锛岀幇璁″垝鍦ㄤ簲杈瑰舰鍚勯《鐐逛负鍦嗗績锛?/p>
2 m
闀夸负鍗婂緞鐨勬墖褰㈠尯鍩?/p>
锛堥槾褰遍儴鍒嗭級
绉嶄笂鑺辫崏锛?/p>
閭ｄ箞绉嶄笂鑺辫崏鐨勬墖褰㈠尯鍩熸�婚潰绉槸
锛?/p>
锛?/p>
锛?/p>
A
锛?/p>
6
飦?/p>
m
2
锛?/p>
B
锛?/p>
5
飦?/p>
m
2
锛?/p>
C
锛?/p>
4
飦?/p>
m
2
锛?/p>
D
锛?/p>
3
飦?/p>
m
2
7
锛庡凡鐭ヤ簩娆″嚱鏁?/p>
2
y
ax
bx
c
飥?/p>
飥?/p>
飥?/p>
锛?/p>
a
鈮?/p>
0
锛夌殑鍥捐薄濡傚浘鎵�绀猴紝鍒欎笅鍒楃粨璁猴細
鈶?/p>
ac >
0
锛?/p>
鈶?/p>
a
鈥?/p>
b
+
c <
0
锛?/p>
鈶㈠綋
x <
0
鏃讹紝
y <
0
锛?/p>
鈶ｆ柟绋?/p>
2
0
ax
bx
c
飥?/p>
飥?/p>
飥?/p>
锛?/p>
a
鈮?/p>
0
锛夋湁涓や釜澶т簬锛?/p>
1
鐨勫疄鏁版牴
锛?/p>
鍏朵腑閿欒鐨勭粨璁烘湁
锛?/p>
锛?/p>
锛?/p>
A
锛夆憽
鈶?/p>
锛?/p>
B
锛夆憽
鈶?/p>
锛?/p>
C
锛夆憼
鈶?/p>
锛?/p>
D
锛夆憼
鈶?/p>
淇鍥?/p>
涓昏鍥?/p>
宸﹁鍥?/p>
绗?/p>
2
棰?/p>
A
绗?/p>
5
棰?/p>
B
C
D
E
绗?/p>
6
棰?/p>
飩?
1
飥?/p>
绗?/p>
7
棰?/p>
O
1
x
y
x
=1
鈥?/p>
鈥?/p>