ebod_
求证ao平分∠BAC
∵AO平分∠BAC,∴∠1=∠2.在△AOD和△AOE中,{∠ADC=∠AEB∠1=∠2OA=OA,∴△AOD≌△AOE(AAS).∴OD=OE.在△BOD和△COE中,{∠BDC=∠CEBOD=OE∠BOD=∠COE,∴△BOD≌...
(1)Do you collect postcards?(2)What do you collect...
Uifsf jt Dijoftf ebodjoh 英语:(汉语:) 有一张加拿大的邮票.(This )(postcard )( is )from( Canada).有一个男孩站在长城上.( There)(is )a boy at ( in)( great)(...