Exchanges of language and culture were a direct result of _____ .

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• 1When he was director of the company his first _____ was to bring about better working conditions.

  A.accomplishment

  B.defeat

  C.accumulation

  D.accompany

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• 2Lyndon Johnson _____ John Kennedy as president of the United States.

  A.succeeded in

  B.succeeded

  C.assisted

  D.followed by

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• 3Peter was so _____ in his novel that he forgot about his dinner cooking in the oven.

  A.excited

  B.absorbed

  C.excelled

  D.obliged

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• 4After a long lunch hour,business _____ as usual.

  A.assumes

  B.resumes

  C.delays

  D.retains.

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• 5Plato′s teachings had a profound _____ on Aristotle.

  A.affect

  B.affection

  C.effort

  D.effect

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• 6The dog saw his _____ in the pool of water.

  A.reflect

  B.reflection

  C.bone

  D.imagination

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• 7Internationally renowned scientists sent lichen samples to Nylander because

  A.he considered them to be simple plants.

  B.he used reagents to determine their use.

  C.he analyzed and classified them.

  D.he collected and preserved them.

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• 8Which of the following is not true、

  A.Nylander accepted his colleagues′ theories on the composition of lichens.

  B.Eighty percent of lichens bear Nylander′s name.

  C.Today lichens are used to detect atmospheric pollution.

  D.Most botanists consider lichens to be a compound species.

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• 9All of the following are true about Nylander except

  A.he was the first to use chemical reagents in the taxonomy of lichens.

  B.he believed that lichens were simple plants.

  C.he was an esteemed lichenologist.

  D.he taught botany at the University of Paris.

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• 10According to accepted nineteenthcentury theories,which two elements form the composition of lichens、

  A.iodine and chemical reagents

  B.algae and fungi

  C.hypochlorite and iodine

  D.chemical reagents and atmospheric chemicals

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