Which of the following statements most accurately describe the nature of an ethical issue in business?
A. Ethical issues can be resolved if you do what you think is right
B. Ethical issues can be resolved by following the guidance of religious beliefs
C. Ethical issues are difficult because all the choices may do some harm
D. Ethical issues are difficult because the results of a decision are hard to predict
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当X1接通时,要将Y0~Y17立即刷新,则可以用指令( )
A. REF Y0 K16
B.REF Y0 Y17
C.REF Y0 K18
D.以上都不对
若要在Y0输出端输出产品100个频率为1KHZ的脉冲信号,则可以用()指令。
A. PLSY K100 K1000 Y0
B. PLSY K1000 K100 Y0
C. PWM K100 K1000 Y0
D. PWM K1000 K100 Y0
当X0有上升沿时立即刷新8点输入X10~X17,则其对应的中断指令为:()
A. I000
B. I101.
C. I010
D.I001
指令REF X0 K8 是一条非法指令。()
A. 对
B. 错