How can traditional industries develop sustainably?

Test analysis: this topic examines the transformation of traditional industrial areas, adjusting industrial structure and developing diversified management; Improving the industrial structure, extending the industrial chain and protecting the environment are the general principles to realize the sustainable development of traditional industrial areas, so choose item D.

Comments: This question is generally difficult. The topic comes from the textbook, and students can analyze and answer as long as they combine what they have learned in the textbook.