From observers' estimates of the brightness of the fireball, he _____ that the body in the space was between 40 feet and 260 feet in diameter.

试卷相关题目

• 1After leaving college in 1980, he was ______ a lawyer, a clerk in a bookshop, and a merchant.

  A.infinitely

  B.continuously

  C.eternally

  D.successively

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• 2His wife's blood transfusion failed because her blood type was not ______ with that of the donor (供血者) .

  A.friendly

  B.adaptable

  C.consistent

  D.compatible

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• 3Beginning in the late 1970s, the economy of Alaska underwent a rapid change since oil was discovered and ______.

  A.adopted

  B.utilized

  C.employed

  D.exploited

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• 4The student was told to ______ for being rude to his teacher.

  A.excuse

  B.apologize

  C.pardon

  D.forgive

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• 5We must prevent that kind of disaster at all ______.

  A.chances

  B.expenses

  C.costs

  D.risks

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• 6As a theory, balance of power predicts the rapid changes in international power and status. For this reason, it helps to maintain the ______ of relations between states.

  A.reliability

  B.credibility

  C.stability

  D.variability

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• 7The state government gave a very __________ explanation of its plans for the development of electronic industry.

  A.comprehensive

  B.comprehensible

  C.comprehension

  D.comprehend

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• 8I hope you can ______ your term papers before the deadline.

  A.permit

  B.commit

  C.admit

  D.submit

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• 9Like most foreigners, I ask a lot of questions, some of which are insultingly silly. But everyone I __________ has answered those questions with patience and honesty.

  A.come across

  B.come by

  C.come over

  D.come into

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• 10There had been another prison breakout (越狱). Five men got away and are still ______.

  A.at random

  B.at length

  C.at large

  D.at stake

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