题目如图,在△ABC\triangle ABC△ABC中,BDBDBD、CDCDCD分别平分∠ABC∠ABC∠ABC和∠ACB∠ACB∠ACB,过点DDD作平行于BCBCBC的直线EFEFEF,分别交ABABAB、ACACAC于EEE、FFF,若BE=2BE=2BE=2,CF=3CF=3CF=3,若BE=2BE=2BE=2,CF=3CF=3CF=3,求EFEFEF的长度.知识点:平行线的性质,等腰三角形的判定章节:未标注