单项选择题
A.Developed low B.Developing low C.Being developed low D.Low to be developed
（）LOW ELY SLWLY WITH COLD FRONT FM CEN TO 12N 179W AND ...
单项选择题（）LOW ELY SLWLY WITH COLD FRONT FM CEN TO 12N 179W AND WARM FROM FM CEN TO 11N 171W.
A.SHLW B.SCTD C.OBS D.SW
The Routing System which aimed at reducing the risk of ...
单项选择题The Routing System which aimed at reducing the risk of casualties is called as（）.
A.Traffic Separation Schemes B.Recommended tracks C.Precautionary areas D.Inshore traffic zones
When winds of force reach 10-11 in Beaufort Scale，usual...
单项选择题When winds of force reach 10-11 in Beaufort Scale，usually we call such winds as（）.
A.Hurricane B.Breeze C.Storm D.Gale
