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【单选题】
在PowerPoint中可通过多种方法创建新幻灯片,下列操作方法错误的是( )。A.
在普通视图的幻灯片缩略图窗格中,定位光标后按 Enter键
B.
在普通视图的幻灯片缩略图窗格中单击鼠标右键,从快捷菜单中选择“新建幻灯片”命令
C.
在普通视图的幻灯片缩略图窗格中定位光标,在“开始”选项卡上单击“新建幻一灯片”按钮
D.
在普通视图的幻灯片缩略图窗格中定位光标,在“插入”选项卡上单击“幻灯片”
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举一反三
【单选题】OSI is a theoretical model that shows how any two different systems can communicate with each other. Router, as a networking device, operate at the ______ layer of the OSI model.
A.
transport
B.
application
C.
network
D.
physical
【简答题】建立一对多关系时，“一”对应的数据表称为主表，而多对应的数据表则称为（）或相关表。
【单选题】What is OSI Model?
A.
Open System Interconnection Reference model
B.
Output System Interconnection Reference model
C.
Open Service Interconnection Reference model
D.
Open Settings Interconnection Reference model
E.
Sorry, I dont know
【简答题】建立一对多关系时,一对应的表称为( ),而多对应的表称为( )
【单选题】The TCP/IP stack is a complete set of networking protocols. The OSI Model was meant to be a standardized way of connecting devices together. and most protocols have some direct correlation to the OSI ...
A.
physical layer
B.
data link Iayer
C.
application layer
D.
transport layer
【单选题】● OSI is a theoretical model that shows how any two different systems can communicate with each other．Router, as a networking device, operate at the (71) layer of the OSI model． (71)
A.
transport
B.
application
C.
network
D.
physical
【简答题】建立一对多关系,一对应的表称为____,多对应的表称为____。
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