39、两机动船相遇,双方避让意图经声号统一后,避让行动( )改变。

19、英文遇险、紧急、安全信文开始分别用什么单词? ( )

16、请选择一个合适的信文标识:( ):I require one pilot and two tugs. ( )

15、请选择一个合适的信文标识:( ):My present maximum draft is 8 meters.

14、请选择一个合适的信文标识:( ) : What is your present maximum draft?

13、 How do you read me? ( )

12、 When visibility is restricted ( ) we can say it is restricted visibility

7、 When it is accepted to remain on a VHF channel, say: ( ).

6、 Area which cannot be scanned by the radar of the vessel because they are shielded by parts of its superstructure, masts, etc means . ( )

5、 How should the number 1 be pronounced when spoken on the radiotelephone?
( )

4、 The following ( ) is a standard phrase.