On your vessel，a wire rope for the cargo gear shows signs of excessive wear and must be replaced. In ordering a new wire for this 10-ton boom，what safety factor should you use?（）<br>A:Three<br>B:Five<br>C:Six<br>D:Seven

On your vessel，a wire rope for the cargo gear shows signs of excessive wear and must be replaced. In ordering a new wire for this 10-ton boom，what safety factor should you use?（）
A:Three
B:Five
C:Six
D:Seven

出自：海船船员证

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