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题目内容
（西北大学-行政管理-大学英语（上））
According to the author, sporting activities______.
A. are essential to the survival
B. have actually developed from hunting
C. evolve as biological development
D. are football games
A. are essential to the survival
B. have actually developed from hunting
C. evolve as biological development
D. are football games
参考答案
