Compared with emerging industries, the obvious characteristics of traditional industries are ① small and medium-sized enterprises, ② centralized distribution of industries, ③ decentralized distributio

Compared with emerging industries, the obvious characteristics of traditional industries are ① small and medium-sized enterprises, ② centralized distribution of industries, ③ decentralized distribution of industries, and ④ highly concentrated technology. C

Test analysis: The emerging industrial areas are mainly small and medium-sized enterprises, and many industries are distributed in rural areas or small towns; Among them, high-tech industries have high technology content, while traditional industries and industrial departments are mostly large enterprises, and the industrial layout is mainly concentrated, which often forms large industrial zones with low technology content, so choose item C.

Comments: This question is less difficult. Students only need to master the differences between emerging industrial zones and traditional industrial zones and pay attention to comparative analysis.