They were ______ to produce carbon,nitrogen,water and other gases.

试卷相关题目

• 1The form cannot be signed by anyone ____ yourself.

  A.rather than

  B.other than

  C.more than

  D.better than

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• 2Owing to the economic crisis, Mr Green has been ________ for several months.

  A.out of danger

  B.out of date

  C.out of work

  D.out of control

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• 3— Have the arrangements for the concert next Saturday been all ______?— Not yet.We haven't found a free band.

  A.in store

  B.in wonder

  C.in turn

  D.in place

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• 4Traffic restrictions have come into effect in Beijing _____ to improve the capital's air quality and traffic situation for the 2008 Olympics.      

  A.inorderthat

  B.inanattempt

  C.atanattempt

  D.inatry

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• 5A successful brand should inspire confidence and trust and fulfill expectations, creating value for customers, which, __________, can lead to lifetime loyalty.   

  A.inreturn

  B.inturn

  C.inotherwords

  D.infact

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• 6Recently, much more emphasis has been put _____ developing the students' creativity.

  A.onto

  B.in

  C.over

  D.on

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• 7Anyone who makes _________ his resume（简历）shall not be qualified ________ the position.

  A.out; to

  B.up; for

  C.up; to

  D.out; in

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• 8The famous pianist Langlang owes his great success to many people,his father ________.     

  A.inturn

  B.inpeace

  C.inreturn

  D.inparticular

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• 9 People have always been curious _____ how living things on the earth exactly  began.     

  A.in

  B.at

  C.of

  D.about

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• 10— Have you made an apology____him ____breaking his window?  — Yes, I have.   

  A.for; to

  B.to; to

  C.for; for

  D.to; for

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