单项选择题
Which of the following is NOT a way of helping customers solve a problem?()
A.creating how-to-content B.listening to customers C.having dinner with customers
单项选择题 Toembraceuser-generatedcontentdoesgoodat.()
单项选择题 Youaresuggestedinthesecondparagraphto.()
单项选择题 Thisarticlemainlytalksabout.()