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题目内容双击单词支持查询和收藏哦～
In 1998, observations of a (i)____________ in the growth of atmospheric methane, a potent greenhouse gas, suggested that many of the scenarios for global warming provided in a 1995 assessment may have been overly (ii)____________. Celebration was, however, premature: subsequent research has established that the observed phenomena were likely caused by (iii)____________ declines in industrial and natural emissions.
- Blank(i)
- spike
- slowdown
- fluctuation
- Blank(ii)
- gloomy
- detailed
- ambitious
- Blank(iii)
- massive
- persistent
- temporary
slowdown , gloomy , temporary 显示答案
以上解析由 考满分老师提供。
