It is thought traditionally that trees The second research proved that

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问题 It is thought traditionally that trees
The second research proved that

选项 A、the life span of trees in the Amazon basin is much longer than others.
B、trees consume carbon dioxide until they die.
C、it takes hundreds of years for trees to purify atmosphere.
D、the carbon that trees consumed may return to the atmosphere in five years.

答案D

解析 推理判断题。本题明显定位于第五段,选项A是对第一句错误理解;选项B是以前的看法(it was thought that...),排除;选项C是对第二句的断章取义;根据第四句的介绍可知选项D是该句结论 (trees were silently returning the carbon after just five years)的同义转述。
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