绗?/p>
1
椤碉紙鍏?/p>
29
椤碉級
2017
骞存睙鑻忕渷瀹胯縼甯備腑鑰冩暟瀛﹁瘯鍗?/p>
涓�銆侀�夋嫨棰橈紙鏈ぇ棰樺叡
8
灏忛锛屾瘡灏忛
3
鍒嗭紝鍏?/p>
24
鍒嗭級
1
锛?/p>
锛?/p>
3
鍒嗭級
5
鐨勭浉鍙嶆暟鏄紙
锛?/p>
A
锛?/p>
5
B
锛?/p>
1
5
C
锛?/p>
鈭?/p>
1
5
D
锛庯梗
5
2
锛?/p>
锛?/p>
3
鍒嗭級涓嬪垪璁＄畻姝ｇ‘鐨勬槸锛?/p>
锛?/p>
A
锛?/p>
锛?/p>
ab
锛?/p>
2
=a
2
b
2
B
锛?/p>
a
5
+
a
5
=a
10
C
锛?/p>
锛?/p>
a
2
锛?/p>
5
=a
7
D
锛?/p>
a
10
梅
a
5
=a
2
3
锛?/p>
锛?/p>
3
鍒嗭級涓�缁勬暟鎹細
5
锛?/p>
4
锛?/p>
6
锛?/p>
5
锛?/p>
6
锛?/p>
6
锛?/p>
3
锛岃繖缁勬暟鎹殑浼楁暟鏄紙
锛?/p>
A
锛?/p>
6
B
锛?/p>
5
C
锛?/p>
4
D
锛?/p>
3
4
锛?/p>
锛?/p>
3
鍒嗭級灏嗘姏鐗╃嚎
y=x
2
鍚戝彸骞崇Щ
2
涓崟浣嶏紝鍐嶅悜涓婂钩绉?/p>
1
涓崟浣嶏紝鎵�寰楁姏鐗╃嚎
鐩稿簲鐨勫嚱鏁拌〃杈惧紡鏄紙
锛?/p>
A
锛?/p>
y=
锛?/p>
x
+
2
锛?/p>
2
+
1
B
锛?/p>
y=
锛?/p>
x
+
2
锛?/p>
2
锕?/p>
1
C
锛?/p>
y=
锛?/p>
x
锕?/p>
2
锛?/p>
2
+
1
D
锛?/p>
y=
锛?/p>
x
锕?/p>
2
锛?/p>
2
锕?/p>
1
5
锛?/p>
锛?/p>
3
鍒嗭級
宸茬煡
4
锛?/p>
m
锛?/p>
5
锛?/p>
鍒欏叧浜?/p>
x
鐨勪笉绛夊紡缁?/p>
{
饾懃
鈭?/p>
饾憵
锛?/p>
0
4
鈭?/p>
2饾懃
锛?/p>
0
鐨勬暣鏁拌В鍏辨湁
锛?/p>
锛?/p>
A
锛?/p>
1
涓?/p>
B
锛?/p>
2
涓?/p>
C
锛?/p>
3
涓?/p>
D
锛?/p>
4
涓?/p>
6
锛?/p>
锛?/p>
3
鍒嗭級鑻ュ皢鍗婂緞涓?/p>
12cm
鐨勫崐鍦嗗舰绾哥墖鍥存垚涓�涓渾閿ョ殑渚ч潰锛屽垯杩欎釜鍦嗛敟鐨?/p>
搴曢潰鍦嗗崐寰勬槸锛?/p>
锛?/p>
A
锛?/p>
2cm B
锛?/p>
3cm C
锛?/p>
4cm D
锛?/p>
6cm
7
锛?/p>
锛?/p>
3
鍒嗭級濡傚浘锛岀洿绾?/p>
a
锛?/p>
b
琚洿绾?/p>
c
锛?/p>
d
鎵�鎴紝鑻モ垹
1=80掳
锛屸垹
2=100掳
锛屸垹
3=85掳
锛?/p>
鍒欌垹
4
搴︽暟鏄紙
锛?/p>
A
锛?/p>
80掳
B
锛?/p>
85掳
C
锛?/p>
95掳
D
锛?/p>
100掳
8
锛?/p>
锛?/p>
3
鍒嗭級濡傚浘锛?/p>
鍦?/p>
Rt
鈻?/p>
ABC
涓紝
鈭?/p>
C=90掳
锛?/p>
AC=6cm
锛?/p>
BC=2cm
锛?/p>
鐐?/p>
P
鍦ㄨ竟
AC
涓婏紝
浠庣偣
A
鍚戠偣
C
绉诲姩锛?/p>
鐐?/p>
Q
鍦ㄨ竟
CB
涓婏紝
浠庣偣
C
鍚戠偣
B
绉诲姩锛?/p>
鑻ョ偣
P
锛?/p>
Q
鍧囦互
1cm/s
鐨勯�熷害鍚屾椂鍑哄彂锛屼笖褰撲竴鐐圭Щ鍔ㄥ埌缁堢偣鏃讹紝鍙︿竴鐐逛篃闅忎箣鍋滄锛岃繛鎺?/p>
PQ
锛屽垯绾?/p>
娈?/p>
PQ
鐨勬渶灏忓�兼槸锛?/p>
锛?/p>
