It’s said that this kind of plant only gives off this strange perfume on ________ conditions which the scientists are trying to figure out now. 

试卷相关题目

• 1You are supposed to collect the mistakes you have made. You will make the same mistakes _________.

  A.also

  B.either

  C.otherwise

  D.though

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• 2The success of a government should be _________ in terms of the health and happiness of the people as well as the development of economy.

  A.measured

  B.observed

  C.benefited

  D.built

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• 3I think this software is of little use to your work. It is really a ________ of money.

  A.lack

  B.load

  C.question

  D.waste

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• 4—It’s so hot. What about getting a drink? —Good ide

  A.It’s my______ .A.treat

  B.charge

  C.trade

  D.cost

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• 5—John，when shall we meet again，Thursday or Friday? — _________ ．I'll be off to London then．

  A.Either

  B.None

  C.Both

  D.Neither

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• 6A teacher’s ________ to education is worth great respect of the whole society because it brings benefits to the development of society.

  A.guidance

  B.principle

  C.identity

  D.devotion

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• 7Your son came to my class every day, but his attitude ________ he was not really interested at all.

  A.expressed

  B.suggested

  C.explained

  D.described

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• 8If I am not __________ when you phone, ask for someone else’s help.

  A.accessible

  B.available

  C.stable

  D.suitable

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• 9As expected, the boy who shows great _________ in playing badminton has been admitted to the sport university for his talent.

  A.requirement

  B.respect

  C.addition

  D.promise

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• 10What I’m interested in is radios and telephones, so I’d like to study __________ Engineering during my four years in university.

  A.Electric

  B.Electrical

  C.Electronic

  D.Electricity

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