单选题A face line is used to（）.Aprevent barge movement in a lockBsecure two barges end-to-endCsecure barges to the towboatDsecure barges side-by-side
单选题
A face line is used to（）.
A
prevent barge movement in a lock
B
secure two barges end-to-end
C
secure barges to the towboat
D
secure barges side-by-side
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