单项选择题
In vessel construction,beams are transverse girders which provide support to().
A.bulkheads B.deckhouse structures C.decks D.vertical frames
单项选择题 In vessel construction,beam brackets are triangular plates that join the deck beam to a().
单项选择题 In Hatch No.3 the cargo()bulk is peaked.
单项选择题 In any case the draught of the vessel at the()shall not be less than that which is necessary to obtain full immersion of the propeller.