问答题 But as societies became more complex and division of labor more common, it was impossible for family members to teach the information and skills young people needed to become useful members of the society.

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【答案解析】但是，因为社会变得越来越复杂，社会分工变得更加普遍，因此，要想把年青一代培养成为对社会有用之才，家庭成员已无法承担传授知识技能的任务。