【单选题】以下关于HDLC的帧结构的描述中,错误的是
A.
HDLC帧由标志、地址、控制、信息、帧校验与标志等字段组成
B.
数据链路层的“帧”相当于OSI中的 DL-PDU
C.
HDLC帧在信息字段中采用“0比特插入/删除方法”
【单选题】下列各项中,不构成一般纳税人外购存货入账成本的是
【单选题】以下关 于HDLC的帧结构的描述中,错误的是___
A.
HDLC帧由标志、地址、控制、信息、帧校验与标志等字段组成
B.
数据链路层的“帧”相当于OSI中的DL-PDU
D.
HDLC帧在信息字段中采用“0比特插入/删除方法”
【简答题】Hello, everyone. I am Peter. Welcome to my school. Look! My school is very big. There are four buildings in it. Our library is in Building A and the offices are in Building D. The library is very big....
【单选题】听力原文: Hello everyone, and welcome to the University of Morpeth. My name is Clare and I'll be showing you around campus and answering any questions that you might have. Currently it is 9:30, and we'll ...
C.
A university tour guide
【简答题】Hello,everyone! My /neim/ is Alice.
【简答题】Hello, everyone. My name is Jane Smith. I am 46 . Jane is my 47 name. In my family, there are 48 people------my parents, my sister, my brother and I. 49 a happy family. My mother is a manager 50 sh...
【单选题】以下关于HDLC的帧结构的描述中,错误的是
A.
HDLC帧由标志、地址、控制、信息、帧校验与标志等字段组成
B.
数据链路层的“帧”相当于OSI中的DL-PDU
C.
HDLC帧在信息字段中采用“0比特插人/删除方法”
【简答题】Hello, everyone.Nice to meet you.It is my 16 day (天) in the school.My first name is Jenny.My family 17 is Green.I’m 18 Class Two.My phone 19 is 886-3068.There are 20 people (人) in my family, my parent...
【单选题】以下关于 HDLC 的帧结构的描述中,错误的是
A.
HDLC 帧由标志、地址、控制、信息、帧校验与标志等字段组成
B.
数据链路层的“帧”相当于 OSI 中的 DL-PDU
C.
HDLC 帧在信息字段中采用“ 0 比特插入 / 删除方法”
D.
网络层提交给的数据放在 HDLC 帧信息字段中