蜘蛛有8条腿，蜻蜓有6条腿和2对翅膀，蝉有6条腿和1对翅膀，现在这三种小虫共18只，有118条腿和18对翅膀，蜘蛛、蜻蜓、蝉各几只？（ ）

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='31397' and id < 2517698 and id<>'2517698' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31397' and id > 2517698 and id<>'2517698' order by id asc limit 5