The______of the 1930s greatly weakened the American nation s self-confidence.
查看答案
Sinclair Lewis Babbitt presents a documentary picture of the narrow and limited______.
A. up-class mind
B. middle-class mind
C. proletarian
D. ordinary people
1980年9月中共中央《关于进一步加强和完善农业生产责任制的几个问题》在理论上有什么突破?