问题
单项选择题
What is meant by the term TOPPING THE BOOM?()
A.Lowering the boom
B.Raising the boom
C.Spotting the boom over the deck
D.Swinging the boom athwartships
答案
参考答案:B
What is meant by the term TOPPING THE BOOM?()
A.Lowering the boom
B.Raising the boom
C.Spotting the boom over the deck
D.Swinging the boom athwartships
参考答案:B