Test analysis: This question examines students' understanding of the "First Five-Year Plan". According to their understanding, Anshan Iron and Steel Company overfulfilled the first five-year plan. Changchun No.1 Automobile Factory? Shenyang No.1 Machine Tool Plant, Wuhan Yangtze River Bridge was completed, and the first jet plane was successfully trial-produced? And so on, so this question chooses D.

Comments: This question is less difficult. It examines students' ability to remember historical knowledge. Students should pay attention to remembering the achievements in various socialist construction periods. The first five-year plan is of great significance. It laid the initial foundation for China's socialist industrialization and opened up broad prospects for China's economic construction. Opened up the road of Socialism with Chinese characteristics's transformation; Accumulated valuable experience of socialist planned construction.