单项选择题

（）hasbecomeafactofmodemlife，withmillionsofpeoplenowshoppingon-line.

A.E-mail
B.E-commerce
C.E-Iearning
D.E-communication

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单项选择题
Thedata（）includesthefunctionofupdatingdataonadatabase，andretrievingdatafromadatabase.

A.management
B.storage
C.analysis
D.communication
单项选择题
TCP IP（）arethestandardsaroundwhichtheInternetwasdeveloped.

A.protocols
B.agreements
C.conventions
D.coordination
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