A.One can connect Wi-Fi devices in ad-hoc mode for client-to-client connections without a router.
B.Communications between two devices need the involvement of an access point with WI-Fi.
C.Now most laptops are built with wireless network adapters inside.
D.Any standard Wi-Fi device will work anywhere in the world with global operative set of standards.
A.The hardware provides indication to the sender about whether the transmission was delivered
B.All stations share a single radio frequency communication channel.
C.A carrier wave is used to transmit the data in packets.
D.Each station is constantly tuned in on the channel.
A.Web 2.0 is a very popular now.
B.Web 2.0 is an entirely new concept.
C.Web 2.0 is not defined clearly.
D.web 2.0 is an revolution in the World Wide Web
A.interpreter
B.linker
C.computer
D.compiler
A.keyboard
B.machine
C.person
D.computer
A.biologic
B.analog
C.digital
D.electrical
A.so far as
B.provided
C.except
D.unless
A.CPU Sockets
B.Power connectors
C.Non-volatile memory chips
D.Expansion Card Slots(扩展插槽)
A.Syntactic
B.Symmetric
C.Serial
D.Sequential
A.remain
B.lost
C.manipulated
D.reliable
A.technology
B.entertainment
C.animation
D.multimedia applications
A.object-relationship chart
B.structure chart
C.flowcharts
D.toplogic chart
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