• 2022-05-31
    A ____ is a slight crack or break in something, especially a bone.
    A: rupture
    B: fracture
    C: breakage
    D: osteotomy
  • B

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      Essential of DNA denaturation is ( ). A: Break of phosphodiester bonds B: Rupture of hydrogen bonds C: Break of secondary bonds D: Destruction of base stacking

    • 1

      A ________ of something is a small piece or part of it. A: fragment B: fracture C: fluid D: fragrance

    • 2

      Hematopoiesis refers to the formation of blood cells in the living body (especially in the bone marrow).____

    • 3

      to get something especially by means of effort:_________

    • 4

      to be involved in something, especially in a way that is important: ______