单项选择题
A.too low to B.too high to C.too high for D.too low for
In restricted visibility a towed vessel must sound a fo...
单项选择题In restricted visibility a towed vessel must sound a fog signal when it is（）.
A.the last vessel in the tow B.the last vessel in the tow and it is carrying a crew C.manned，regardless of its position in the tow D.None of the above are correct
In reduced visibility，you hear two prolonged blasts of ...
单项选择题In reduced visibility，you hear two prolonged blasts of a whistle. This signal is sounded by a （）.
A.power-driven vessel dead in the water B.sailing vessel on the port tack C.vessel not under command D.vessel fishing with nets
In order to maintain speed while changing course from a...
单项选择题In order to maintain speed while changing course from a close reach to a broad reach，the sails should be（）.
A.lowered B.reefed C.hauled in D.eased out
