(5)、 [单选题] (2分)What do we learnabout similar measures concerning the soda tax in some other cities?
A. They are becoming rather sensitive issues.
B. They are spreading panic in the soda industry.
C. They are reducing the incidence of sugar-induced diseases.
D. They are taking away a lot of profit from the soda industry.
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因特网的前身是()
ARPANET
B. LAN
C. WAN
D. CSTNet
下列不属于网络软件的是()
A. 路由器
B. 网络操作系统
C. 网络协议
D. 应用服务软件
192.168.5.88属于()
A类IP地址
B类IP地址
C类IP地址
D类IP地址
中继器完成的功能是()
A. 连接局域网
B. 延长网络长度
C. 连接城域网
D. 连接广域网