American pencil makers ______ their product by the millions.

试卷相关题目

• 1Petrochemicals are generally chemical ______ derived from petroleum.

  A.compounds

  B.complex

  C.combined

  D.complicated

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• 2By one ______, almost one billion people watched the 1982 championship game on television.

  A.guess

  B.estimate

  C.predict

  D.expect

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• 3The special education class contained the slow learners, those with ______ or mental disabilities, or those whose behavior made it hard for them to learn.

  A.physical

  B.practical

  C.natural

  D.behavior

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• 4If you travel ______ , you see new customs, eat new foods, do new things, and come back home with a broader mind.

  A.aboard

  B.abroad

  C.oversea

  D.domestic

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• 5The largest ______ever to attend a soccer match was at the World Cup final on July 16, 1950.

  A.crowd

  B.swarm

  C.herd

  D.flock

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• 6Washington Roebling was a cripple ______ he lived.

  A.as soon as

  B.as long as

  C.as much as

  D.as far as

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• 7The Buick driver, a former convict, had been ______ from the Oklahoma county jail only a week before.

  A.relaxed

  B.released

  C.relayed

  D.relieved

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• 8Lincoln pulled Grigsby off, raised him shoulder high and threw him aside ______ he were a sack of meal.

  A.even though

  B.just because

  C.now that

  D.as though

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• 9Gene technology is already being used in a ______ of fields.

  A.variety

  B.various

  C.variant

  D.scarcity

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• 10The oil under the surface of the earth ______ in the distant past.

  A.manufactured

  B.generated

  C.originated

  D.estimated

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