• 2021-04-14
    The optimal distance of the ultraviolet lights used to sterilize the items is
  • 25-60cm
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    • 0

      99. It can be inferred from paragraph 7 that a public distance is used .

    • 1

      The stopway can be used to increase the length of . A: the takeoff distance available (TODA) B: the acceleration-stop distance available (ASDA) C: the takeoff run available (TORA) D: the landing distance available (LDA)

    • 2

      Total station functions used in this case are①measuring horizontal distance ②measuring angle ③determining coordinates ④ measuring vertical distance A: ①② B: .②③ C: .③④ D: .④①

    • 3

      When I was younger I ______ long distance, but now I'm out of practice. A: was used to walk B: got used to walk C: was used to walking D: used to walking

    • 4

      Which of these best describes non-current assets? A: Items bought to be used in the business B: Items which will not wear out quickly C: Expensive items bought for the business D: Items having a long life and not bought specifically for resale