单选题()hasbecomeafactofmodemlife,withmillionsofpeoplenowshoppingon-line.A E-mailB E-commerceC E-IearningD E-communication

题目
单选题
()hasbecomeafactofmodemlife,withmillionsofpeoplenowshoppingon-line.
A

E-mail

B

E-commerce

C

E-Iearning

D

E-communication


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