A. are forms of biological development B. have actually developed from hunting C. are essentially forms of taming the prey . D. have changed the ways of hunting 参考答案:B 答案解析:[解析] “Sporting activities are essentially modified forms of hunting behaviour.”表明体育运动由古时的狩猎行为发展而来,答案
第6题: [单项选择]急性酒精中毒共济失调期 A. 呼吸表浅 B. 情绪不稳定 C. 步态不稳 D. 记忆力严重丧失 E. 头晕、乏力 参考答案:C