A vessel constrained by her draught may,in addition to the lights prescribed for power-driven vessels in Rule 23,exhibit where they can best be seen()or a cylinder.
A:two all-round red lights in a vertical line
B:three all-round red lights in a vertical line
C:two all-round yellow lights in a vertical line
D:three all-round green lights in a vertical line
出自:海船船员证