帧中继减少中继结点的处理步骤，它是以______为前提的。A．中继交换机具有高速处理 发布时间：2018-01-11 07:22 │ 来源：www.tikuol.com 题型：单项选择题 问题： 帧中继减少中继结点的处理步骤，它是以______为前提的。A．中继交换机具有高速处理能力B．基于数据帧在光纤上传输基本不会出错C．一种新的帧结构D．中继传输距离较短
题型：单项选择题 情景交际：用方框中所给句子完成对话。A. Don't you wish her to go to college? B. Are you hoping any important letter? C. Oh,well,that is not a big surprise. D. He's good,but not very clever. E. She always urges him to study hard.Alice: Peter ,you keep looking through your letter box recently. 1 Peter: I'm hoping the report card from my son's school.Alice: It seems that you and your wife have high hopes for your son.Peter: My wife wants our son to become the top student in his grade. 2 Alice: That's because your wife wishes him to go into the best college.Peter: Yes ,but I'm afraid she's hoping too much of the child. 3 Alice: Your son is a bit worse than the best but much better than the worst. Look at my daughter, she's a clever girl ,but she never studies hard.Peter: 4 Alice: It's not to be expected. Do you know what she wants to do? She's dreaming of being a dancer.Peter: 5 查看答案
题型：单项选择题 下面反映发病率和患病率区别的有（）。A.发病率的分子为一定时间内暴露人群中新发生的病例数；患病率的分子为特定时间内所调查人群中某种肿瘤的新旧病例数B.患病率衡量肿瘤的存在和流行情况，发病率衡量疾病的出现情况C.患病率是由横断面调查获得的疾病频率，发病率是由发病报告或队列研究获得的疾病频率D.以上均是E.以上均不是 查看答案
题型：单项选择题 张某和王某是夫妻，女儿小张今年2岁。下列何种情况下，不能终止张某作为小张的法定代理人的身份( )。A．张某和王某一起把小张送给无儿女的李某夫妇收养B．一年后张某和王某离婚，法院将小张判给了王某C．张某因车祸而变为无行为能力人D．十六年后小张成为完全行为能力人 查看答案