The helm command PORT TWENTY means ____ . A. change course twenty degrees to the port B. put the rudder port twenty degrees C. put the rudder hard a port for the first twenty degrees of swing D. put the rudder port twenty degrees and then ease back as the vessel starts swinging

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The helm command NOTHING TO PORT means do not ____.A. use left rudder B. steer to left of the ordered courseC. steer to right of the ordered course D. leave any buoys on the port side

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单选题

The helm command PORT TWENTY means ____ .A. change course twenty degrees to the portB. put the rudder port twenty degreesC. put the rudder hard a port for the first twenty degrees of swingD. put the rudder port twenty degrees and then ease back as the vessel starts swinging

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单选题

The MySQL service name is MySQL. The command to stop the MySQL service is ( )

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