单选题The safe working load for the assembled cargo gear and the minimum angle to the horizontal for which the gear is designed shall be marked on the（）.AdeckBhead of the boomCheel of the boomDmast or king post
单选题
The safe working load for the assembled cargo gear and the minimum angle to the horizontal for which the gear is designed shall be marked on the（）.
A
deck
B
head of the boom
C
heel of the boom
D
mast or king post
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