()协议是在计算机和网络之间交换文件的最简单的方法。 A.HTTP B.FTP C. 发布时间:2019-01-17 04:48 │ 来源:www.tikuol.com 题型:单项选择题 问题: ()协议是在计算机和网络之间交换文件的最简单的方法。A.HTTPB.FTPC.TCPD.SMT
题型:单项选择题 I ________ asleep because it took me a long time to realize that the telephone was ringing. A.could fall B.need have fallenC.must have fallen D.may fall 查看答案