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（）.
单项选择题 Camber，in a ship，is usually measured in（）.
单项选择题 Battens are fitted in cargo holds across the frames of the vessel from the turn of the bilge upward. The purpose of these cargo battens is（）.
