【判断题】态度是由认知、情感、意向三个因素构成的,是比较持久的个人内在心理结构
【单选题】在层次网络体系结构中,第n层协议利用(2)提供的服务向(3)提供服务,对等实体是指(4),数据在同一个系统自上层传到下层,这种数据格式称为(5),某层实体接收到上层传来的数据后,一般要(6)才能使接收方知道如何处理。
【单选题】Which of the following best describes the way the last paragraph functions in the context of the passage?
A.
The last in a series of arguments supporting the central argument of the passage is presented.
B.
A viewpoint is presented which qualifies one presented earlier in the passage.
C.
Evidence is presented in support of the argument developed in the preceding paragrap.
D.
Questions arising from the earlier discussion are identified as points of departure for further study of the topic.
E.
A specific example is presented to illustrate the main elements of argument presented in the earlier paragraphs.
【单选题】Which sentence proves that setting the giant reflector is a delicate operation?
A.
The first sentence in the last paragraph.
B.
The second sentence in the last paragraph.
C.
The last sentence in the last paragraph.
D.
The last sentence in the third paragrap
【单选题】根据下面的文字资料回答 21~25 题 在网络体系结构中,第N层协议利用( 1 )提供的服务向( 2 )提供服务,对等实体是指( 3 ),数据在同一个系统自上层传到下层,这种数据格式称为( 4 ),某层实体接收到上层传来的数据后,一般要( 5 )才能使接收方知道如何处理。 第21题:文中( 1 )处正确的答案是( )。
【简答题】●在网络体系结构中,第N层协议利用 (24) 提供的服务向 (25) 提供服务,对等实体是指 (26) , 数据在同一个系统自上层传到下层,这种数据格式称为 (27) ,某层实体接收到上层传来的数据后,一般要 (28) 才能使接收方知道如何处理。 (24) A.(N+1)层协议 B.N 层协议 C.(N-1)层协议 D.物理层 (25) A.(N+1)层协议 B.N 层协议 C.(N-1)层协议 ...
【单选题】在网络体系结构中,第N层协议利用(24)提供的服务向(25)提供服务,对等实体是指(26),数据在同一个系统自上层传到下层,这种数据格式称为(27),某层实体接收到上层传来的数据后,一般要(28)才能使接收方知道如何处理。