When under maneuvering conditions with the machine
When under maneuvering conditions with the machinery being manually operated the control unit or console should be
A.automatically controlled
B.continuously manned
C.off power
D.continuously unmanned
请帮忙给出正确答案和分析，谢谢！
参考解答
488***779
2024-06-14 15:33:32
正确答案：B
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