The author concludes by asking his readers _____ .

试卷相关题目

• 1Figures on the loss of agricultural land may not seem“impressive” because _____ .

  A.there is such a large amount of farmland in Canada

  B.the problem only affects Eastern Canada

  C.only crops such as corn and soft fruits are affected

  D.people do not know the real extent of the problem

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• 2We are told that in smaller towns on the Prairies,farmland is being consumed _____ .

  A.in proportion to increased land speculation

  B.at the rate of 16 000 hectares every 7 years

  C.principally by lowdensity rural housing

  D.at a faster rate than in the big cities

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• 3We are told that productive farmland near cities would _____ .

  A.prevent possible food shortages

  B.keep present food prices high

  C.encourage even more urban growth

  D.increase the value of urban fringe land

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• 4According to the passage, what is the purpose of examining a sample of a population、

  A.To compare different groups.

  B.To predict characteristics of the entire population.

  C.To detect differences not observable in the whole population.

  D.To compile more accurate data.

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• 5Which of the following statements about descriptive statistics is best supported by the passage、

  A.It reduces large amounts of data to a more comprehensible form.

  B.It is based on probability.

  C.It can be used by people with little knowledge of mathematics.

  D.It measures only qualitative differences.

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