中国石油大学 / 中石油
正确率:100%
33.(2.0分) ________ is the most prosperous period in the American economic history.
A、the 1920s
B、the 1930s
C、the 1940s
D、the 1950s
A、the 1920s
B、the 1930s
C、the 1940s
D、the 1950s
参考答案: