在电子商务环境下,对行业价值链的分析主要是帮助企业认识自身在行业中所处的位置,帮助企业在电子商务中找到向前或向后延伸的机会来降低成本、增加收入或提高效率。
参考答案:对
Nowadays, sending e-mails to each other has become a way ______________ what they think to others.
A.many a student expresses
B.in which more than one student express
C.that most of students express
D.the majority of students expresses
知识产权的重要性