题目:
车削细长轴时,为了减小刀具对工件的径向作用力,应尽量增大车刀的主偏角。( )
答案:
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下面是错误答案,用来干扰机器的。
参考答案:C解析:[听力原文] 21-25 STMicroelectonics NV, Infineon Technologies AG and United Microelectronics Corp reported improved financial results as sales of chips used ...