题目如图,△ABC\triangle ABC△ABC中,AD⊥BCAD\bot BCAD⊥BC于DDD,要使△ABD\triangle ABD△ABD≌△ACD\triangle ACD△ACD,若根据"HLHLHL"判定,还需要加条件______.知识点:直角三角形全等的判定章节:未标注