The man walked into the library and dumped a pile of books on the counter.

1 .Which of the following statements best explains why “the second of these was the more serious impediment” (line 22)?

A Chemical knowledge was limited to a small number of people. B The symbolic language used was very imprecise. C Very few new discoveries were made by alchemists. D The records of the chemical processes were not based on experiments.

题型: 单选题 提问时间: 2021-08-22

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2 .The label on the packet read: "This product contains no artificial colouring or flavouring."

A man-made B special C toxic D harmful

题型: 单选题 提问时间: 2021-08-22

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3 .To date, scientists have not yet detected this form of life. (paragraph 5)What does "this form of life" refer to?

A Water-based life. B Methane-based life. C Liquid-water-based microorganisms. D Gas-based life.

题型: 单选题 提问时间: 2021-08-22

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4 .He is one of those men who dislike work intensely and will do anything to avoid it.

A extremely B very much C severely D a large amount

题型: 单选题 提问时间: 2021-08-22

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5 .Which of the following can replace the title of this passage?

A Earthlike Living Beings Found on Titan. B Finding of One More Moon of Saturn. C Titan, a New Satellite Found. D A different Life Form, a Possibility.

题型: 单选题 提问时间: 2021-08-22

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7 .The express train went through the station with a mighty roar.

A a strong B an influential C a powerful D a long

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8 .It is not certain whether there will be enough advertising revenues to go around.

A goods B fund C programs D facilities

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9 .A. provide B. improve C. lack D. update

题型: 单选题 提问时间: 2021-08-22

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