單項選擇題In the Northern Hemisphere，an observer at point II in the weather system should experience a wind shift from the（）.

A.Southwest，clockwise to northwest
B.Northeast，clockwise to west-southwest
C.Northeast，counterclockwise to northwest
D.East，counterclockwise to south-southwest


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1.單項選擇題In the Northern Hemisphere a wind is said to veer when the wind（）.

A.Changes direction clockwise，as from north to east，etc
B.Changes direction violently and erratically
C.Remains constant in direction and speed
D.Changes direction counterclockwise，as from south to east，etc

2.單項選擇題In regions near the poles，the winds are generally described as（）.

A.Westerlies
B.Easterlies
C.Northerlies
D.Southerlies

3.單項選擇題If you observe the point of cloud convergence shifting to the right and the “bar”of the storm appears to move along the horizon（）.

A.The center of the storm will by-pass you
B.The storm will strike you on the starboard side
C.You are in the direct path of the storm and should take immediate steps to batten down loose gear
D.The storm is starting to break up

4.單項選擇題If you are caught in the left semicircle of a tropical storm，in the Southern Hemisphere，you should bring the wind（）.

A.On the starboard quarter，hold course and make as much way as possible
B.2 points on the port quarter，and make as much way as possible
C.On the port bow，and make as much way as possible
D.Dead ahead and heave to