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【简答题】
GX-Developer编程软件可以对以太网、MELSECNET/10(H)、CC-Link等网络进行参数设定,具有完善的诊断功能,能方便地实现 ,程序的 ,不仅可通过 直接连接完成,还可以通过网络系统完成。
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【单选题】They ______ on the program for almost one week before I joined them, and now we _____on it as no good results have come out so far.
A.
had been working; are still working
B.
had worked; were still working
C.
have been working; have worked
D.
have worked; are still working
【简答题】They _______ on the program for almost one week before I joined them,and now we _______ it as no good results have come out so far. A．had been working; are still working B．had worked; were still wor...
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