What is the purpose of this passage? [br] Scientist Ram Oren is of the opinion t

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问题 What is the purpose of this passage? [br] Scientist Ram Oren is of the opinion that common beliefs of the tree’s ability to absorb carbon dioxide are ______.

选项 A、biased
B、insightful
C、overoptimistic
D、totally wrong

答案 C

解析 态度判断题。关键语句:"He says that earlier estimates on the ability of forests to absorb carbon dioxide were overly hopeful."可见他认为大众观点过于乐观。
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