When a cargo boom or crane is rated at varying capacities，there will be a table at the controls which relates safe working load to（）.<br>A:winch speed<br>B:boom strength<br>C:load radius<br>D:cable strength

When a cargo boom or crane is rated at varying capacities，there will be a table at the controls which relates safe working load to（）.
A:winch speed
B:boom strength
C:load radius
D:cable strength

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