What are not the resulting effects on cities when those people moved out?
A. There were more crimes.
B. Cities were in a bad condition.
C. Only one mass transit system was completed.
D. Some small companies move in while larger ones moved out.
正确答案：D
32．答案为D根据全文选项ABC在文中均提到是迁移的后果而选项D没有提到
