一条信息,若一人得知后,一小时内将信息传给两人,这两人又在一小时内各传给未知信息 发布时间:2017-04-30 15:23 │ 来源:www.tikuol.com 题型:填空题 问题: 一条信息,若一人得知后,一小时内将信息传给两人,这两人又在一小时内各传给未知信息的另外两人.如此下去,要传遍55人的班级所需时间大约为_______小时.
题型:填空题 Only when he left home ______ how much he loves his parents. [ ]A. did he know B. had he know C. he knew D. he had knew 查看答案