鈥荤簿鍝佽瘯鍗封�?/p>
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鑽?/p>
涓?/p>
杞?/p>
绗?/p>
3
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姝ｆ柟褰?/p>
鐭ヨ瘑鐐?/p>
1
姝ｆ柟褰㈢殑瀹氫箟鍙婃�ц川
锛?/p>
2018
娉稿窞锛夊鍥?/p>
4
锛屾鏂瑰舰
ABCD
涓紝
E
锛?/p>
F
鍒嗗埆鍦ㄨ竟
AD
锛?/p>
CD
涓婏紝
AF
锛?/p>
BE
鐩镐氦浜庣偣
G
锛岃嫢
AE=3ED
锛?/p>
DF=CF
锛屽垯
AG
GF
鐨勫�兼槸锛?/p>
锛?/p>
A.
4
3
B.
5
4
C.
6
5
D.
7
6
G
F
E
D
C
B
A
锛?/p>
2018
妗傛灄锛夊鍥撅紝鍦ㄦ鏂瑰舰
ABCD
涓紝
AB=3
锛岀偣
M
鍦?/p>
CD
鐨勮竟涓婏紝涓?/p>
DM=1
锛?/p>
螖
AEM
涓?/p>
螖
ADM
鍏充簬
AM
鎵�鍦ㄧ殑鐩寸嚎瀵?/p>
绉帮紝灏?/p>
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ADM
鎸夐『鏃堕拡鏂瑰悜缁曠偣
A
鏃嬭浆
90掳寰楀埌
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ABF
锛岃繛鎺?/p>
EF
锛屽垯绾挎
EF
鐨勯暱涓猴紙
锛?/p>
A.3 B.
3
2
C.
13
D.
15
锛?/p>
2018
涓婃捣锛?/p>
锛?/p>
2018
鍏板窞锛?/p>