单项选择题

Deck beams on a vessel are generally spaced at equal intervals and run（）.

A.longitudinally
B.vertically
C.transversely
D.intermittently

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单项选择题
Concentrated heavy loads are involved in loading a LASH vessel. What does NOT require close attention due to such loads while working cargo?（） .

A.GM - available and required
B.Longitudinal stress numeral
C.Tons per inch immersion numeral
D.Draft
单项选择题
Compared to internal structural plating，the exterior hull plating on a vessel is usually（）.

A.stronger
B.thinner
C.more corrosion resistant
D.a lower grade steel
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