问题
单项选择题
() has become a fact of modem life, with millions of people now shopping on-line.
A.E-mail
B.E-commerce
C.E-learning
D.E-communication
答案
参考答案:B
() has become a fact of modem life, with millions of people now shopping on-line.
A.E-mail
B.E-commerce
C.E-learning
D.E-communication
参考答案:B