No direct relationship has been proven between high cholesterol levels and heart attacks. Children should learn more responsibi

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问题 No direct relationship has been proven between high cholesterol levels and heart attacks.
Children should learn more responsibility for their health through ______.

选项

答案classes in nutrition and aerobic exercise

解析 关于教育孩子的内容在第八段提到,including children in elementary schools,接着进一步说明teach them responsibilities for their health through classes in nutrition and aerobic exercise。
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