• 2022-06-06
    Which of the following measures is not an effective way to prevent aerosol production? ( )(2 points)
    A: Standard operation.
    B: Wear a protective mask.
    C: Strengthen personnel operating process training.
    D: Improved operating techniques.
  • B

    内容

    • 0

      What are the personal protective measures for COVID-19? A: A Wash your hands B: B Wear a mask C: C Monitor your temperature regularly D: D Avoid large crowds E: E All above

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      Which of the following are the meanings of “phase out”? A: To discontinue the practice, production, or use of by phases B: To stop production or operation by phases C: To continue the practice, production, or use of by phases D: To increase production or operation by phases

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    • 3

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    • 4

      In a hydraulic transmission system typical operating modes include manual operation、( )、( )、( ) and electro-hydraulic operation。