涓撻
11
鍦?/p>
涓�銆侀�夋嫨棰?/p>
1
锛?/p>
锛?/p>
2017
骞磋吹宸炵渷姣曡妭鍦板尯绗?/p>
12
棰?/p>
锛?/p>
濡傚浘锛?/p>
AB
鏄姍
O
鐨勭洿寰勶紝
CD
鏄姍
O
鐨勫鸡锛?/p>
鈭燗CD=30掳锛?/p>
鍒欌垹
BAD
涓?/p>
锛?/p>
锛?/p>
A
锛?0掳
B
锛?0掳
C
锛?0掳
D
锛?0掳
銆愮瓟妗堛�?/p>
C.
鑰冪偣锛氬渾鍛ㄨ瀹氱悊
2
锛?/p>
锛?/p>
2017
骞磋吹宸炵渷榛斾笢鍗楀窞绗?/p>
5
棰橈級
濡傚浘锛屸姍
O
鐨勭洿寰?/p>
AB
鍨傜洿浜庡鸡
CD
锛屽瀭瓒充负
E
锛屸垹
A=15
掳锛屽崐寰勪负
2
锛?/p>
鍒欏鸡
CD
鐨勯暱涓猴紙
锛?/p>
A
锛?/p>
2
B
锛庯梗
1
C
锛?/p>
D
锛?/p>
4
銆愮瓟妗堛�?/p>
A
銆愯В鏋愩�?/p>
璇曢鍒嗘瀽锛氭牴鎹瀭寰勫畾鐞嗗緱鍒?/p>
CE=DE
锛屸垹CEO=90掳锛屾牴鎹渾鍛ㄨ瀹氱悊寰楀埌鈭燙OE=30掳锛屾牴鎹洿瑙掍笁瑙掑舰鐨勬�?/p>
璐ㄥ緱鍒?/p>
CE=
1
2
OC=1
锛屾渶鍚庣敱鍨傚緞瀹氱悊寰楀嚭
CD=2OE=2
锛?/p>
鏁呴�?/p>
A
锛?/p>