American diplomatic commitment joke

Analysis of test questions: Analyzing this joke, "Every Soviet family can own a private jet" shows that the Soviet Union's heavy industry is very developed, while "I heard in Moscow that Leningrad has started to supply bread, so I can fly to the queue immediately" shows that its daily necessities are extremely lacking, that is, its light industry is extremely backward. Generally speaking, the national economy of the Soviet Union is seriously unbalanced, and the answer is D.

Comments: This question is moderately difficult. In fact, it examines the imbalance of economic proportion in the process of industrialization in the Soviet Union, and examines students' ability to analyze and understand materials. When solving problems, we should pay attention to the actual situation of the Soviet Union at that time.