In the last sentence of the passage, the word "they" refers to _____.

试卷相关题目

• 1According to the passage, which of the following is NOT a factor in complete understanding of price、

  A.Instructions that come with a product.

  B.The quantity of a product.

  C.The quality of a product.

  D.Warranties that cover a product.

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• 2According to the passage, the price system is related primarily to _____.

  A.labor and education

  B.transportation and insurance

  C.utilities and repairs

  D.products and services

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• 3The passage implies that cellulose is a very porous substance because it contains _____.

  A.millions of tiny holes

  B.a substance that dissolves it

  C.a substance that creates pressure

  D.liquid medicine

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• 4The passage implies that medicine in an osmotic pump pill will leave the pill when _____.

  A.the pill is swallowed

  B.the cellulose coating is dissolved

  C.enough pressure builds up in the pill

  D.the medicine is dissolved with water from the body

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• 5The way that the osmotic pump pill works is based on a process called ______.

  A.cellulose

  B.osmosis

  C.pressure

  D.synthesis

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• 6The paragraph following the passage most likely discusses _____.

  A.unusual ways to advertise products

  B.types of payment plans for service

  C.theories about how products affect different levels of society

  D.how certain elements of a price "package" influence its market value

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• 7The atmosphere of the moon is _____ that of the earth.

  A.much the same as

  B.harder to see than

  C.much different from

  D.cleaner than

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• 8The surface of the moon is _____.

  A.so hot that it warms the earth

  B.much colder at all times than the earth

  C.about the same as that of the earth in terms of heat and cold

  D.sometimes much hotter, sometimes much colder than the earth

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• 9In talking about the question of where the moon came from, Professor Wetherill of the University of California said that he believes that the answer is _____.

  A.going to be found by 1990 at the latest

  B.that the moon was once part of the earth

  C.a chmd of gas and dust thom which both the earth and the sun were born

  D.probably something no one has thought of yet

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• 10Since earth creatures cannot breathe in the moon's atmosphere, we can safely say that _____.

  A.it is impossible for people to live on the moon

  B.people would need special equipment in order to live on the moon

  C.there is no way to grow food there

  D.no one would want to live there

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