选择题：According to the author, sporting activities______

题目内容：
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
参考答案：

进入第二产程的标志是(本题2.0分)A. 宫口开全B. 胎头拔露C. 胎头着冠D. 外阴膨隆E. 胎

进入第二产程的标志是(本题2.0分)A. 宫口开全B. 胎头拔露C. 胎头着冠D. 外阴膨隆E. 胎膜已破

分类：西北大学-行政管理-大学英语（上）  题型：选择题
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