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【单选题】
关于完全竞争的说法,哪个是正确的?( )A.
在完全竞争市场中，所有单个的企业和消费者都无法影响到市场的价格
B.
对一个完全竞争厂商来说，需求曲线是水平的
C.
完全竞争的世界是一个价格接受者的世界
D.
以上全部都正确
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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
【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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