Commercial application of the research finding will be possible if salad cream can be made resistant to bacterial attack ________.

试卷相关题目

• 1The word “colonies” (Line 2, Par

  A.4) refers to ________.A.tiny globules

  B.watery regions

  C.bacteria communities

  D.little compartments

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• 2According to Brocklehurst, we can keep cream fresh by ________.

  A.removing its fat

  B.killing the bacteria

  C.reducing its water content

  D.altering its structure

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• 3According to the researchers, cream sours fast than butter because bacteria ________.

  A.are more evenly distributed in cream

  B.multiply more easily in cream than in butter

  C.live on less fat in cream than in butter

  D.produce less waste in cream than in butter

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• 4The significance of Brocklehurst’s research is that ________.

  A.it suggested a way to keep some foods fresh without preservatives

  B.it discovered tiny globules in both cream and butter

  C.it revealed the secret of how bacteria multiply in cream and butter

  D.it found that cream and butter share the same chemical composition

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• 5According to the passage, the Empire Builder enjoyed an increase in ridership and profits because ________.

  A.the attractiveness of its name and route was effectively advertised

  B.it provided an exciting travel experience

  C.its passengers could enjoy the great western outdoors

  D.it was widely advertised in newspapers and magazines in Chicago and Seattle

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• 6She ought to stop work; she has a headache because she ________ too long.

  A.has been reading

  B.had read

  C.is reading

  D.read

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• 7Niagara Falls is a great tourist ________, drawing millions of visitors every year.

  A.attention

  B.attraction

  C.appointment

  D.arrangement

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• 8I don’t mind ________ the decision as long as it is not too late.

  A.you to delay making

  B.your delaying making

  C.your delaying to make

  D.you delay to make

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• 9The hopes, goals, fears and desires ________ widely between men and women, between the rich and the poor.

  A.alter

  B.shift

  C.transfer

  D.vary

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• 10Corn originated in the New World and thus was not known in Europe until Columbus found it ________ in Cub

  A.A.being cultivated

  B.been cultivated

  C.having cultivated

  D.cultivating

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