【单选题】关于应用层协议,以下哪一项描述是错误的
A.
应用层协议规定了两个应用进程之间相互作用和交换消息时需要遵循的规则
B.
应用层协议对应的 PDU 封装成 UDP 或 TCP 报文
D.
应用层协议在设计 TCP/IP 体系结构时确定
【单选题】In this part of the quiz, indicate the main function of the term or phrase that is in boldface in the following passage. More than one letter might be acceptable, but y ou must choose only one option ...
B.
C = a conclusion marker
E.
D = a discounting term
F.
E+ = a positive evaluative term
G.
E- = a negative evaluative term
【单选题】( )是物流企业为鼓励顾客的淡季消费采用的价格折扣。
【单选题】In this part of the quiz, indicate the main function of the term or phrase that is in boldface in the following passage. More than one letter might be acceptable, but y ou must choose only one option ...
B.
C = a conclusion marker
E.
D = a discounting term
F.
E+ = a positive evaluative term
G.
E- = a negative evaluative term
【单选题】In this part of the quiz, indicate the main function of the term or phrase that is in boldface in the following passage. More than one letter might be acceptable, but y ou must choose only one option ...
B.
C = a conclusion marker
E.
D = a discounting term
F.
E+ = a positive evaluative term
G.
E- = a negative evaluative term
【单选题】In this part of the quiz, indicate the main function of the term or phrase that is in boldface in the following passage. More than one letter might be acceptable, but y ou must choose only one option ...
B.
C = a conclusion marker
E.
D = a discounting term
F.
E+ = a positive evaluative term
G.
E- = a negative evaluative term
【简答题】关于应用层协议,以下哪一项描述是错误的A. 应用层协议规定了两个应用进程之间相互作用和交换消息时需要遵循的规则 B. 应用层协议对应的PDU封装成UDP或TCP报文 C. 应用层有多个应用层协议 D. 应用层协议在设计TCP/IP体系结构时确定
【多选题】迄今为止,人类的发展进程大体经历了哪三个文明阶段:( )。