题目内容：
Though __________ in his youth, Muir grew in the fullness of time to acquire truly __________ habits envied by even the most hardened of his fellow survivalists.
参考答案：
答案解析：
单选题：Though __________ in his youth, Muir grew in the fullness of
- 题目分类：GRE
- 题目类型：单选题
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