• 2022-05-27
    What is the ratio of the length of the mining zone to the length of the bench?( )
    A: Full length or part of it
    B: Full length
    C: Part of it
    D: None
  • A

    内容

    • 0

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    • 1

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    • 4

      已知int[][] a= {{1,2},{3,4,5,6},{7,8,9}},a.length()=_________,a[0].length()=__________, a[1].length()=__________,a[2].length()=__________,a[3].length()=__________。