It is possible，and sometimes necessary，to strengthen the deck of a vessel for carriage of deck cargo by（）.<br>A:placing bunker on the deck<br>B:building a stage on which to place the cargo<br>C:welding steel feet to the deck，on which the cargo is placed<br>D:erecting vertical pillars under the deck to support the cargo

It is possible，and sometimes necessary，to strengthen the deck of a vessel for carriage of deck cargo by（）.
A:placing bunker on the deck
B:building a stage on which to place the cargo
C:welding steel feet to the deck，on which the cargo is placed
D:erecting vertical pillars under the deck to support the cargo

出自：海船船员证

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