• 2022-06-03
    Which treatment of laser is NOT mentioned in the essay?
    A: Eye.
    B: Cancer.
    C: Brain.
    D: Ear.
  • C

    内容

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      5. The computer, which seems to play the role of a human brain, is often called an electronic brain.

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      4.A good brain made it possible for man to make tools which in turn stimulated the development of the brain.

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      3. Which of the following sentence is right? A: The goal is to learn their risk of thyroid cancer the extent to which radiation may increase. B: The goal is to learn the extent to which radiation may increase their risk of thyroid cancer. C: The goal may increase their risk of thyroid cancer is to learn the extent to which radiation. D: The goal is to learn the extent to radiation which may increase their risk of thyroid cancer.

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      Which application of laser is NOT mentioned in the text? A: Medical uses. B: Communications systems. C: Education. D: Military field.

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      What kind of cancer may the sunlight protects us from? A: Stomach cancer. B: Skin cancer. C: Lung cancer. D: Blood cancer.