More than（）of the population in the United States lived in city areas in 1988.A、60%B、75%C、90%D、50%
题目
More than（）of the population in the United States lived in city areas in 1988.
- A、60%
- B、75%
- C、90%
- D、50%
More than（）of the population in the United States lived in city areas in 1988.