• 2022-07-29
    Tyrian purple was first extracted from
    A: Isatis tinctoria
    B: Gardenia jasminoides Ellis
    C: Rubia tinctorum
    D: Bolinus brandaris
  • D

    内容

    • 0

      Juice can be __________ from many fruits such as oranges and grapes. A: distracted B: attracted C: extracted D: protracted

    • 1

      The words and phrases of Keywords part can be extracted from A: the title B: the abstract C: the subheadings D: the conclusions

    • 2

      What can be _______ from my past is something worthy of reflection. A: subtracted B: distracted C: extracted D: contracted

    • 3

      France controlled Syria ______ A: before the First World War B: from 1516 until the end of the First World War C: from 1516 to Syrian independence D: from the end of the First World War to I946

    • 4

      If a sample of DNA extracted from a culture of cells is found to have 18% guanine, what would the expected proportion of thymine be from this culture? A: 18% B: 32% C: 36% D: 64%