38、在能见度不良时,某船仅在雷达上发现他船,应采取的措施是( )
①保持正规了望;②使用雷达确定碰撞危险;③将航速减到能维持其航向的最小速度;④该船位于本船的正横以前,则立即大幅度向右转向。

20、“海上搜救协调中心”用下面哪个缩写表示?( )

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?
( )