皮皮学,免费搜题
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【单选题】
AM96型转向架的轴承采用()
A.
42726,152726型轴承
B.
FAG804468A/804469A型轴承
C.
进口SKF双列圆锥自密封型
D.
BC1B322880、BC1B322881型轴承
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