单项选择题

A cofferdam is（）.

A.any deck below the main deck and above the lowest deck
B.a member that gives fore-and-aft strength
C.made by placing two bulkheads a few feet apart
D.a heavy fore-and-aft beam under the deck

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单项选择题

When a vessel’s LCG is aft of her LCB，the vessel will（）.

A.trim by the stern
B.trim by the head
C.be on an even keel
D.be tender

单项选择题

What provides the majority of strength to an aluminum-sided container?（）.

A.Corner fittings
B.Framework，primarily the corner posts
C.Framework and siding acting as a girder
D.Aluminum side and end panels