单选题A vessel sounds one short blast. This signal indicates the vessel（）.Aintends to alter course to starboardBintends to pass starboard to starboardCis altering course to starboardDintends to pass port to port
单选题
A vessel sounds one short blast. This signal indicates the vessel（）.
A
intends to alter course to starboard
B
intends to pass starboard to starboard
C
is altering course to starboard
D
intends to pass port to port
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