On a very cold winter day，there was a drunken guy（41） decided that he would go fishing on the ice in the lake．He packed up all his fishing tools and set out in search of a （42）
阅读下面短文，根据短文内容完成相关任务。 Oldestfestivals Festivals and celebrations of all kinds are held everywhere．The oldest festivals would celebrate the end of the cold weat
中，
，
于E，AD⊥CE于D,
，求
的长。（8分）
