A.immediately flush the spill with large quantities of fresh water
B.cover the contaminated surface with soda-ash-soaked lime solution
C.add sodium bisulfate on the contaminated surface and spray it down with water
D.move to a position upwind of the spill and allow the product to boil off
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A.stronger than during the summer months
B.weaker than during the summer months
C.drier than during the summer months
D.wetter than during the summer months
A.north and increasing
B.north and decreasing
C.south and increasing
D.south and decreasing
A.opposite direction from which the fibers are twisted together to form strands
B.same direction the fibers are twisted to form strands
C.opposite direction from which the fibers are twisted together to form the line
D.opposite direction from which the fibers are twisted together forming cables
A.three shapes，the highest and lowest shall be red balls，and the middle shall be a white diamond
B.two black balls
C.three shapes; the highest and lowest shall be black balls，and the middle shall be a red diamond
D.three shapes; the highest and lowest shall be black balls and the middle shall be a black diamond
A.two balls in a vertical line
B.two diamonds in a vertical line
C.a single black ball
D.no shape is shown during the day
最新試題
Fighting a rig fire in the ballast pumproom with hoses would adversely affect the stability of the rig most by（）.
Fire protection regulations for towing vessels require all crew members to know how to perform each of these tasks EXCEPT（）.
During the course of a voyage，a seaman falls on the main deck and injures his ankle. The Master should submit a Report of Marine Accident，Injury or Death if the（）.
During the winter months，the southeast trade winds are（）.
During oil transfer operations，who is responsible for ensuring that the posted transfer procedures are followed?（）
Each drilling unit equipped with helicopter fuel storage tanks must have the tanks installed as far as practicable from the（）.
Fire protection regulations for towing vessels require any fuel line subject to internal head pressure from fuel in the tank to（）.
During the manufacture of line，yarns are twisted together in the（）.
Fittings used for towing must be（）.
Fighting a rig fire in a watertight compartment with hoses could reduce the stability of the rig by（）.