Solid green arrows on the main body of a pilot chart indicate ().
A、prevailing wind directions
B、prevailing ocean current directions
C、probable surface current flow
D、shortest great circle routes
A、prevailing wind directions
B、prevailing ocean current directions
C、probable surface current flow
D、shortest great circle routes
A、red or green to conform with the other lateral aids B、red and green horizontally-striped C、solid yellow D、white with orange marks
A、solid yellow B、white with orange geometric shapes C、red and white vertically-striped D、green and red horizontally-banded
A、Orange/white, orange, green/white, blue, blue/white, green, brown/white, brown B、Blue, blue/white, orange/white, orange, brown/white, brown, green/white, green C、Green/white, green, orange/white, blue, blue/white, orange, brown/white, brown D、Orange/white, orange, brown/white, brown, green/white, green, blue, blue/white
A、unusually solid welded B、never be solid forged C、almost invariably solid forged D、almost invariably be welded
A、A.low-velocity fog only B、B.a solid stream only C、C.a solid stream and foam D、D.a solid stream and fog
A、the solid impurities of large particle B、the solid impurities of fine particle C、the water content D、both water and solid impurities