题目内容：
A recent study found that most old people in some European countries had regular weekly contact with their adult children.参考答案：【答案仅供学习，请勿对照自行用药等】
答案解析：
简答题：A recent study found that most old people in some European
- 题目分类：英语六级
- 题目类型：简答题
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