单项选择题
How should the number 7 be pronounced when spoken on the radiotelephone?（）.
A.SAY-TAY-SEVEN B.SEE-ETA-SEVEN C.NUM-BER-SEVEN D.NEW-MER-AL-SEVEN
单项选择题 How should the number 9 be pronounced when spoken on the radiotelephone?（）.
单项选择题 I am making water means（）.
单项选择题 Land-based authority conducting and co-ordinating search and rescue operations in a designated area defines（）.
