• 2022-10-27
    以眼还眼,以牙还牙。
    A: An eye for an eye and a tooth for a tooth.
    B: An eye for a eye and a tooth against a tooth.
    C: An eye for two eyes and a tooth for a tooth.
  • A

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    • 0

      The tooth is usually divided into three parts ( ). A: Tooth crown B: Tooth neck C: Tooth surface D: Tooth root E: Tooth foot

    • 1

      For soft tooth surface gear transmission, the hardness of the tooth surface should be selected A: Pinion tooth surface hardnesslarge gear tooth surface hardness B: Pinion tooth surface hardness≤large gear tooth surface hardness

    • 2

      tooth

    • 3

      A tender tooth is ______.

    • 4

      The baby has only two (tooth) now.