Every device _____ in the spacecraft must be designed and made with great care so as to be sure that nothing goes wrong in operation.

试卷相关题目

• 1It's true that the old road is less direct and a bit bumpy. We won't take the new one _____ because we feel as safe on it.

  A.however

  B.though

  C.nevertheless

  D.whatsoever

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• 2The meeting _____ in October, but the plan has been put off again and again.

  A.was to have been held

  B.ought to have held

  C.was to be held

  D.must have been held

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• 3The two astronauts _____ someday hope it is to fly the craft into earth orbit were fighttesting.

  A.that

  B.whom

  C.whose

  D.who

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• 4Mr.Jones, I am really pleased _____ you. And I hope we will be able to see each other in not long time.

  A.to meet

  B.to have met

  C.at meeting

  D.having met

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• 5There are many kinds of synthetic materials, _____ plastics are the most common.

  A.between which

  B.of which

  C.in which

  D.among which

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• 6I don't believe you are going to have the matter looked into today, _____、

  A.are you

  B.do you

  C.aren't you

  D.don't you

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• 7_____ that a society like the National Society for the Prevention of Cruelty to children is still needed in a civilized country.

  A.How does it come

  B.How it comes

  C.How did it come about

  D.How did it come

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• 8When we encounter more difficulties, we should be more spirited, and we should be more courageous _____.

  A.the more danger we are in

  B.the more in danger we are

  C.we are in more danger

  D.we are in danger more

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• 9While the total number of farmers engaged in the agriculture production is barely half _____ it used to be in 1959, the size of the average farm has tripled.

  A.that

  B.what

  C.which

  D.how

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