题目

From facts，scientists have ________ that more energy is being absorbed from the sun，throwing the earth’s energy “out of balance”. A. confirmed                    B. concluded C. concentrated                 D. centred   答案： B 句意表明：从事实中，科学家得出结论……。conclude得出结论。A项，进一步证实；C项，集中；D项，以……为中心，这三项均不符合语境意义。

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