()hasbecomeafactofmodernlife,withmillionsofpeoplenowshoppingon-line.
A.E-mail B.E-commerce C.E-learning D.E-communication正确答案B
()hasbecomeafactofmodernlife,withmillionsofpeoplenowshoppingon-line.
A.E-mail B.E-commerce C.E-learning D.E-communication正确答案B