单选题A(n) （） is a mechanical attack on the metal surface which may be due to a disturbance in the flow of the water over the blade of the propeller.AerosionBcorrosionCpittingDdezincification
单选题
A(n) （） is a mechanical attack on the metal surface which may be due to a disturbance in the flow of the water over the blade of the propeller.
A
erosion
B
corrosion
C
pitting
D
dezincification
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解析：
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