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以下设备中,哪些是单总线系统?(). ["A.S320","B.S330","C.S360","D.S380","E.S385","F.S390"]
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《钢质海船入级与建造规范》中规定,薄钢板应小于或等于()。 ["1mm","3mm","4mm","5mm"]
简述汽车电路图的识读要领?
简述发动机加速不良故障诊断程序。