在SDH网络中基本的网元类型有:()、分插复用器(ADM)、再生中继器(REG)及小 发布时间:2017-04-16 03:08 │ 来源:www.tikuol.com 题型:填空题 问题: 在SDH网络中基本的网元类型有:()、分插复用器(ADM)、再生中继器(REG)及小型数字交叉连接设备(DXC)。
题型:填空题 书面表达。 假定你是王林,你的英国笔友Heleri在做有关也界各国中学生如何过周未的调查。她给你发了一封电子邮件,想了解相关情况。请认真阅读下面的邮件,根据邮件中的内容和你的实际情况用英语回复,可适当发挥。 注意:1. 不少于60词,开头和结尾已经写好,不计人总词数。 2. 回复中不得出现任何人名、校名及其它相关信息,否则不予评分。 Subject: Weekends From: HelenDear Wang Lin, I’m doing a survey on how students spend their weekends around the world. I need your help. Could you please answer the following questions? ● How do you usually relax yourself on weekends? ● Do you do chores at home? Why or why not? ● What do you wamt to do most? And why? Thanks, HelenSubjcct: Weekends From: Wang LinDear Helen, Thank you for your email. I would like to answer your questions. Best wishes, Wang Lin 查看答案