Study on formation mechanism of consumer's croo-buying from the perspective of attachment theory 并列题名：Study on formation mechanism of consumer's croo-buying from the perspective of attachment theory Study on the evolution mechanism of characteristic towns from the perspective of innovation ecology Study on citation practices in academic writing from the perspective of pragmatic identity theory 并列题名：Study on citation practices in academic writing from the perspective of pragmatic identity theory Research on the guarantee mechanism of construction project quality from the perspective of stakeholders Study of the cognitive mechanism and path of English complex sentences: from the perspective of grounding theory Study on the development mechanism of urban agglomeration from the perspective of ecological economy 并列题名：Study of the cognitive mechanism and path of English complex sentences: from the perspective of grounding theory a study of facilitation mechanisms from the perspective of transaction costs