单项选择题
A.on B.in C.at D.out
Floating, caused by winds and current with a determinab...
单项选择题Floating, caused by winds and current with a determinable direction defines（）.
A.floating B.sailing C.drifting D.running into danger
Floating, not controlled, without a clearly determinabl...
单项选择题Floating, not controlled, without a clearly determinable direction means（）.
A.grounding B.sailing C.adrift D.running into danger
How should the number 1 be pronounced when spoken on th...
单项选择题How should the number 1 be pronounced when spoken on the radiotelephone?（）.
A.OO-NO B.O -NAH-WUN C.NUM-EV-WUN D.NEW-MAL-WON
