2017
鈥?/p>
2018
瀛﹀勾鍏勾绾ф暟瀛︿笅鍐屽洓杈瑰舰鍔ㄧ偣闂鏈熸湯澶嶄範棰樺強绛旀
1
銆佸鍥撅紝
E
鏄鏂瑰舰
ABCD
瀵硅绾?/p>
AC
涓婁竴鐐癸紝
EF
鈯?/p>
AB
锛?/p>
EG
鈯?/p>
BC
锛?/p>
F
銆?/p>
G
鏄瀭瓒筹紝鑻ユ鏂瑰舰
ABCD
鍛?/p>
闀夸负
a
锛屽垯
EF
锛?/p>
EG
绛変簬
銆?/p>
2
銆佸鍥撅紝
P
鏄鏂瑰舰
ABCD
鍐呬竴鐐癸紝灏嗏柍
ABP
缁曠偣
B
椤烘椂閽堟柟鍚戞棆杞兘涓庘柍
CBP鈥?/p>
閲嶅悎锛岃嫢
PB=3
锛屽垯
PP鈥?
3
銆?/p>
鍦?/p>
Rt
鈻?/p>
ABC
涓?/p>
鈭?/p>
C=90掳
AC=3 BC=4 P
涓?/p>
AB
涓婁换鎰忎竴鐐?/p>
杩囩偣
P
鍒嗗埆浣?/p>
PE
鈯?/p>
AC
浜?/p>
E PE
鈯?/p>
BC
浜庣偣
F
绾挎
EF
鐨勬渶灏忓�兼槸
4
銆?/p>
濡傚浘锛?/p>
鑿卞舰
ABCD
涓紝
AB=4
锛?/p>
鈭?/p>
BAD
锛?/p>
60
掳锛?/p>
E
鏄?/p>
AB
鐨勪腑鐐癸紝
P
鏄瑙掔嚎
AC
涓婄殑涓�涓姩鐐癸紝
鍒?/p>
PE+PB
鐨勬渶灏忓�兼槸
銆?/p>
5
銆?/p>
濡傚浘鎵�绀猴紝
姝ｆ柟褰?/p>
ABCD
鐨勯潰绉负
12
锛?/p>
ABE
鈻?/p>
鏄瓑杈逛笁瑙掑舰锛?/p>
鐐?/p>
E
鍦ㄦ鏂瑰舰
ABCD
鍐咃紝
鍦ㄥ瑙掔嚎
AC
涓婃湁涓�鐐?/p>
P
锛屼娇
PD
PE
飥?/p>
鐨勫拰鏈�灏忥紝鍒欒繖涓渶灏忓�间负
C
A
B
P
F
E
E
D
C
B
A
P
A
D
E
P
B
C