• 2022-06-19
    用毛巾沿着金属丝(钢索)摩擦,可以发现金属丝(钢索)断丝。
    A: To find damage on wires, rub a cloth along them.
    B: To make damage on wires apparent, rub a cloth along them.
    C: To decide damage to wires, rub a cloth along them.
    D: To detect damage to wires, rub a cloth along them.
  • A
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