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

试卷相关题目

• 1The 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

  开始考试点击查看答案
• 2According 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

  开始考试点击查看答案
• 3The train ads were placed among family-oriented TV programs involving nature and America because ________.

  A.they could focus on meaningful travel experiences

  B.they could increase the effectiveness of the TV programs

  C.their profits could be increased by some 15 percent

  D.most travel-lovers and nervous fliers were believed to be among the audiences

  开始考试点击查看答案
• 4To encourage consumers to travel by train, DDB Needham emphasized ________.

  A.the freedom and convenience provided on trains

  B.the practical aspects of train travel

  C.the adventurous aspects of train trips

  D.the safety and cleanliness of train trips

  开始考试点击查看答案
• 5It can be inferred from the passage that the drop in Amtrak ridership was due to the fact that ________.

  A.trains were not suitable for short distance passenger transportation

  B.trains were not the fastest and most convenient form of transportation

  C.trains were not as fast and convenient as they used to be

  D.trains could not compete with planes in terms of luxury and convenience

  开始考试点击查看答案
• 6According 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

  开始考试点击查看答案
• 7The word “colonies” (Line 2, Par

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

  B.watery regions

  C.bacteria communities

  D.little compartments

  开始考试点击查看答案
• 8Commercial application of the research finding will be possible if salad cream can be made resistant to bacterial attack ________.

  A.by varying its chemical composition

  B.by turning it into a solid lump

  C.while keeping its structure unchanged

  D.while retaining its liquid form

  开始考试点击查看答案
• 9She ought to stop work; she has a headache because she ________ too long.

  A.has been reading

  B.had read

  C.is reading

  D.read

  开始考试点击查看答案
• 10Niagara Falls is a great tourist ________, drawing millions of visitors every year.

  A.attention

  B.attraction

  C.appointment

  D.arrangement

  开始考试点击查看答案