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
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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
A.injured is unfit for duty
B.injured is able to return to work
C.injury results in loss of life only
D.injury is the result of misconduct
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Each fire hose coupling on a ship must have threads that meet the specifications of the（）.
During the day，a dredge will indicate the side on which it is safe to pass by displaying（）.
During the manufacture of line，yarns are twisted together in the（）.
Fire extinguishers used on ship’s are numbered by size I through V，with I being（）.
During the day，a vessel picking up a submarine cable shall carry（）.
Each EPIRB required on a ship shall be stowed in a manner which will permit（）.
During transfer operations，a quantity of propylamine spills on deck. According to the Chemical Data Guide，the correct procedure would be to（）.
During the winter months，the southeast trade winds are（）.
Fire protection regulations for towing vessels require all crew members to know how to perform each of these tasks EXCEPT（）.
Each fire pump on a tanker must have a pressure gauge located at（）.