If a weather bulletin shows the center of a low pressure system to be 100 miles due east of you，what winds can you expect in the Southern Hemisphere?（）.

单项选择题HIGH WAVES；DENSE STREAKS OF FOAM ALONG THE DIRECTION OF THE WIND；CRESTS OF WAVES BEGIN TO TOPPLE，TUMBLE AND ROLL OVER；SPRAY MAY AFFECT VISIBILITY.This condition is likely to be termed（）.

A.strong breeze
B.near gale
C.gale
D.strong gale

单项选择题Gale warnings are usually issued when winds of（）8-9 are expected．

A.wind Speed
B.Air Force
C.wind Velocity
D.Beaufort Force

单项选择题For an accurate barometer check，you would（）.

A.check it with a barometer on another vessel
B.take readings from several barometers and average them
C.check it with the barometer at the ship chandlery
D.check it against radio or National Weather Service reports of the immediate vicinity

单项选择题Fleet weather forecast messages are the expected conditions in（）.

A.a certain area
B.all ocean areas
C.some areas
D.important areas

单项选择题Especially in adverse weather，risk of collision with an offshore supply vessel increases when the vessel is moored to what side of the unit?（）.

A.Upwind
B.Downwind
C.Crosswind
D.Downcurrent