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【单选题】
All the workers ____ together and wrote a letter to the head of the company.A.
got
B.
put
C.
took
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【简答题】大大小小的招贴画
【单选题】A computer ( ) is a group of computers linked by wired or wireless technology to share data and resources.
A.
network
B.
device
C.
processor
D.
modem
【单选题】Which statement best describes the benefits of Cisco Integrated Services Routers？（）
A.
In a single device，ISRs provide threat defense against attacks from hackers and viruses thatcan occur in the network.
B.
In a single device，ISRs provide the framework to integrate and extend wired and wirelessnetworks.
C.
In a single device ISRs provide concurrent security， voice， data， wireless and applicationoptimization services.
D.
In a single device，ISRs provide the common fabric，functionality，and CLI across the network.
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