6. In what way do elderly people benefit from their contact with nature?
[A] They look on life optimistically.
[B] They enjoy a life of better quality.
[C] They are able to live longer.
[D] They become good-humoured.
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答案解析:
根据以下资料回答题When Rosalind wore the headband, she was surprised
根据以下资料回答题When Rosalind wore the headband, she was surprised at