单项选择题
A.The one with the wind closest abeam
B.The one to windward
C.The one to leeward
D.The one that sounds the first whistle signal
单项选择题 If your weather bulletin shows the center of a low pressure area to be 100 miles due east of your position, what winds can you expect in the northern hemisphere?（）.
单项选择题 In 1979 an extensive（）program was in progress throughout Suez Canal.
单项选择题 In a crossing situation on international waters, a short blast by the give-way vessel indicates that the vessel（）.