Smoke particles and other air pollutants are often trapped i

Smoke particles and other air pollutants are often trapped in the atmosphere, th

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试算平衡表中,包括(  )。

试算平衡表中,包括(  )。

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At 80, Peck was still vigorous and living in Paris.

At 80, Peck was still vigorous and living in Paris.A.energetic B.happy C.alone D

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由大革命失败到土地革命战争兴起的历史转折点是(  )。

由大革命失败到土地革命战争兴起的历史转折点是(  )。

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请在(62)处填上最佳答案。 A. ifB. since C. becauseD. when

请在(62)处填上最佳答案。 A. ifB. since C. becauseD. when

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