单项选择题
A.alter course to starboard to pass around the other vessel
B.reduce your speed to bare steerageway
C.slow your engines and let the other vessel pass ahead of you
D.alter course to port to pass the other vessel on its portside
单项选择题 You are underway and approaching a bend in the channel where vessels approaching from the opposite direction cannot be seen．You should sound（）.
单项选择题 You are under sail and overtaking a tug and tow.Which action is correct（）.
单项选择题 You are on a vessel that cannot comply with the spacing requirement for masthead lights.What is required in this situation（）.