The after part of a ship is called（）(船尾) .

单项选择题Steer（）（北）！

A.south
B.north
C.east
D.west

单项选择题Keep the NO1（）(浮标) on the port side!

A.buoy
B.mark
C.beacon
D.channel

单项选择题----How answers? -----（）(舵很灵) ！

A. No steerage
B. Answers back
C. Answers all right
D. No answer

单项选择题How answers? -----（）(舵反转) ！

A. No steerage
B. Answers back
C. Answers all right
D. No answer

单项选择题This is a （）(罗兰).

A. compass
B. direction finder
C. loran
D. sextant