• 2021-04-14
    In CNC panel, there are optional function switches.
  • 数控机床操作面板上有可选功能开关。

    内容

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      将一个容器panel放到容器frame1中的方法是() A: frame1.insert(panel) B: frame1.add(panel) C: frame1.addJPanel(panel) D: frame1.insertJPanel(panel)

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      The whole instrument panels of cockpit are replaced, including hard-wired dedicated switches.

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      Not only the switches but also the old wiring ________ changed.

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      Which is optional on the envelop?

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      A company uses LIFO in one year, then switches to FIFO and then to average-cost. This is a violation of the: