• 2021-04-14
    There has been developed a method for producing vastly more powerful rays.
  • 现在已经研究出了产生功率强得多的射线的方法。

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      Which of the following impacts of e-commerce on traditional commerce is not true? A: The market form has the characteristics of virtualization and globalization. B: The supply chain has developed from centering on the core enterprises to the way of gradual transmission. C: The marketing method of the enterprises has developed from large-scale marketing to precision marketing. D: E-commerce has changed the shopping decision-making process of consumers, and has also made consumers shop more rationally.

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      The invisible rays of the()beyond the violet end are called the ultraviolet rays. A: speculation B: spectrum C: sleet D: range

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      中国大学MOOC:"This __________ method has been introduced in every factory. ";

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      It is widely accepted that the cultural industry has been one of the key industries in developed countries.

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      “Price has been more and more cheap.” is not an example of mismatched usage. ( )