单选题Flanking rudders effect a vessel’s heading because of the（）.Aeffect of the propeller flow on the ruddersBwater flow due to the vessel's movement through the waterCtunnel affect of the water flow past opposing ruddersDdischarge current being channeled to impinge on the vessel's deadwood
单选题
Flanking rudders effect a vessel’s heading because of the（）.
A
effect of the propeller flow on the rudders
B
water flow due to the vessel's movement through the water
C
tunnel affect of the water flow past opposing rudders
D
discharge current being channeled to impinge on the vessel's deadwood
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