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It was obvious that the Climate Change Conference in Copenhagen______the global environmental problems.

A．a(chǎn)imed on B．focused on
C．intended for D．commented on

B

解析試題分析： A瞄準(zhǔn)，目的在于；B聚焦；集中注意力于…；C打算，意圖；D評(píng)論…；句義：很清楚哥本哈根氣候大會(huì)聚焦于全球變暖的問(wèn)題。根據(jù)句義說(shuō)明B正確。
考點(diǎn)： 考察動(dòng)詞短語(yǔ)辨析

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