绗?/p>
1
椤?/p>
鍏?/p>
7
椤?/p>
2019-2020
瀛﹀勾浜烘暀鐗堝叓骞寸骇鏁板涓婂唽
绗?/p>
13
绔?/p>
13.1
銆婂绉拌酱銆嬪悓姝ョ粌涔?/p>
涓�銆侀�夋嫨棰橈紙鍏?/p>
8
灏忛锛?/p>
1
锛庡鍥撅紝鐩寸嚎
CD
鏄嚎娈?/p>
AB
鐨勫瀭鐩村钩鍒嗙嚎锛?/p>
P
涓虹洿绾?/p>
CD
涓婄殑涓�鐐癸紝宸茬煡绾挎
PA=5
锛屽垯绾挎
PB
鐨勯暱搴︿负锛?/p>
锛?/p>
A
锛?/p>
6
B
锛?/p>
5
C
锛?/p>
4
D
锛?/p>
3
2
锛庡鍥撅紝
AC=AD
锛?/p>
BC=BD
锛屽垯鏈夛紙
锛?/p>
A
锛?/p>
A
B
鍨傜洿骞冲垎
CD
B
锛?/p>
C
D
鍨傜洿骞冲垎
AB
C
锛?/p>
A
B
涓?/p>
C
D
浜掔浉鍨傜洿骞冲垎
D
锛?/p>
C
D
骞冲垎鈭燗CB
3
锛庝笅鍒楄娉曚腑閿欒鐨勬槸锛?/p>
锛?/p>
A
锛?/p>
杩?/p>
鈥滃埌绾挎涓ょ鐐硅窛绂荤浉绛夌殑鐐光�濈殑鐩寸嚎鏄嚎娈电殑鍨傜洿骞冲垎绾?/p>
B
锛?/p>
绾?/p>
娈靛瀭鐩村钩鍒嗙嚎鐨勭偣鍒扮嚎娈典袱绔偣鐨勮窛绂荤浉绛?/p>
C
锛?/p>
绾?/p>
娈垫湁涓斿彧鏈変竴鏉″瀭鐩村钩鍒嗙嚎
D
锛?/p>
绾?/p>
娈电殑鍨傜洿骞冲垎绾挎槸涓�鏉＄洿绾?/p>
4
锛庡埌鈻矨BC
鐨勪笁涓《鐐硅窛绂荤浉绛夌殑鐐规槸鈻矨BC
鐨勶紙
锛?/p>
A
锛?/p>
涓?/p>
杈?/p>
鍨傜洿骞冲垎绾跨殑浜ょ偣
B
锛?/p>
涓?/p>
鏉¤骞冲垎绾跨殑浜ょ偣
C
锛?/p>
涓?/p>
鏉￠珮鐨勪氦鐐?/p>
D
锛?/p>
涓?/p>
杈逛腑绾跨殑浜ょ偣
5
锛?/p>
濡傚浘锛?/p>
鈭燗BC=50掳锛?/p>
AD
鍨傜洿骞冲垎绾挎
BC
浜庣偣
D
锛?/p>
鈭燗BC
鐨勫钩鍒嗙嚎浜?/p>
AD
浜?/p>
E
锛?/p>
杩炴帴
EC
锛涘垯鈭燗EC
绛変簬锛?/p>
锛?/p>
A
锛?/p>
1
00掳
B
锛?/p>
1
05掳
C
锛?/p>
1
15掳
D
锛?/p>
1
20掳
6
锛庡鍥撅紝鈻矨BC
涓紝
AD
鏄?/p>
BC
鐨勪腑鍨傜嚎锛岃嫢
BC=8
锛?/p>
AD=6
锛屽垯鍥句腑闃村奖閮ㄥ垎鐨?/p>
闈㈢Н鏄紙
锛?/p>
A
锛?/p>
4
8
B
锛?/p>
2
4
C
锛?/p>
1
2
D
锛?/p>
6
7
锛庡鍥撅紝鈻矨BC
涓紝
AB=AC
锛?/p>
AB
鐨勫瀭鐩村钩鍒嗙嚎
DE
浜?/p>
BC
鐨勫欢闀跨嚎浜?/p>
E
锛屼氦
AC
浜?/p>
F
锛屼氦
AB
浜?/p>
D
锛岃繛鎺?/p>
BF
锛庤嫢
BC=6cm
锛?/p>
BD=5cm
锛屽垯鈻矪CF
鐨勫懆闀夸负锛?/p>
锛?/p>
A
锛?/p>
1
6cm
B
锛?/p>
1
5cm
C
锛?/p>
2
0cm
D
锛?/p>
鏃?/p>
娉曡绠?/p>
8
锛?/p>
濡傚浘鈻?/p>
ABC
涓紝
鈭?/p>
B=40
掳
,AC
鐨勫瀭鐩村钩鍒嗙嚎浜?/p>
AC
浜庣偣
D,
浜?/p>
BC
浜庣偣
E
锛?/p>
涓斺垹
EAB
锛?/p>
鈭?/p>
CAE=3
锛?/p>
1
锛屽垯鈭?/p>
C=( )
A
锛?/p>
2
8
掳
B
锛?/p>
2
5
掳
C
锛?/p>
2
2.5
掳
D
锛?/p>
2
0
掳
绗?/p>
1
棰樺浘
绗?/p>
2
棰樺浘
绗?/p>
5
棰樺浘
绗?/p>
6
棰樺浘
绗?/p>
7
棰樺浘
绗?/p>
8
棰樺浘
E
D
A
B
C