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题目内容双击单词支持查询和收藏哦～
The difficulty for nineteenth-century advocates of the claim that forests helped regulate climate was that their argument (i)_____ historical anecdote and observations. Proving the forest-climate link through verifiable and experimental scientific means rather than observation was (ii)_____ for these individuals, a situation that eventually led to the link (iii)_____ justifications for forest conservation.
- Blank(i)
- lacked
- discounted
- employed
- Blank(ii)
- problematic
- unnecessary
- straightforward
- Blank(iii)
- being revived in
- dropping out of
- losing out to
employed , problematic , dropping out of 显示答案
以上解析由 考满分老师提供。
