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单选题
A large vessel is equipped with a controllable pitch propeller. Which statement is TRUE?().
A

When dead in the water,it is often difficult to find the neutral position and slight headway or sternway may result

B

When going directly from full ahead to full astern,there is complete steering control

C

When the vessel has headway and the propeller is in neutral,there is no effect on rudder control

D

When maneuvering in port,full ahead or astern power can usually be obtained without changing shaft RPM


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