问题
单项选择题
（） are two vertical supports，usually steel，one each side of the centerline of the ship used to support booms.
A.Shrouds
B.King posts
C.Stays
D.Turnbuckles
答案
参考答案：B
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（） are two vertical supports，usually steel，one each side of the centerline of the ship used to support booms.
A.Shrouds
B.King posts
C.Stays
D.Turnbuckles
参考答案：B