问题
选择题
The population of the world has grown very fast ____ four hundred years. [ ]
A. for past the
B. in the pass
C. in the past
D. for past
答案
答案：C
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The population of the world has grown very fast ____ four hundred years. [ ]
A. for past the
B. in the pass
C. in the past
D. for past
答案：C