• 2021-04-14
    This ______ must be kept within accepted limits, or the diode will suffer physical damage.
  • temperature rise

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    • 0

      Food ___in a cool place in summer. A: must keep B: mustn't keep C: must be kept D: mustn't be kept

    • 1

      Hurricanes are killer winds, and their ________ power lies in the physical damage they can do.

    • 2

      ______ is discussed at the meeting must be kept secret.

    • 3

      The medicine () cool, clean and dry. A: must keep B: must be kept C: must be keep D: must be i

    • 4

      They kept trying _____ they must have known it was hopeless.