When entering a channel from seaward，the numbers on buoys（）.
1、Entering from seaward，triangular-shape
Entering from seaward，triangular-shaped daymarks are used to mark（）.Athe starboard side of the channelBthe centerline of the channelCan obstruction where the preferred channel is to starboardDspecial purpose area
2、On entering from seaward，a starboard s
On entering from seaward，a starboard side daymark will（）.Ashow a fixed red light if lightedBshow a Morse (A) white lightCbe square in shapeDhave an even number if numbered
3、Entering from sea,a daymark on the por
Entering from sea,a daymark on the port side of the channel would be indicated on a chart by a（）.Ared triangle with the letter RBwhite triangle with the letters RGCgreen square with the letter GDwhite square with the letter GR
4、The place where a channel moves from a
The place where a channel moves from along one bank of the river over to the other bank of the river is called a（）.AdraftBcutoffCdrawDcrossing
5、When entering from seaward，a buoy disp
When entering from seaward，a buoy displaying a single-flashing red light would indicate （）.Aa junction with the preferred channel to the leftB...
6、When underway in a channel,you should
When underway in a channel,you should keep to the（）.Amiddle of the channelBstarboard side of the channelCport side of the channelDside of the channel that has the widest tur