相关题目
45. *Cargoes mainly handled by Nanjing port can be found in ().
44. *All marks within the IALA system are distinguished by (). ① material; ②topmark; ③ light characteristics; ④ color
43. All marks within the IALA system are distinguished by (). ① shape; ② top mark;③ light characteristics; ④ color
42. The International Association of Lighthouse Authorities ( ) buoyage system A uses some types of marks to distinguish safe navigation. Which type( ) does( ) not belong to the system?
41. *Despite of every effort made to ensure the accuracy of the information on Admiralty charts and other publications, the information may ().
40. All charts and publications should be kept up to date with the () amendments.
39. *Attention is () the advice on the use of charts in The Mariner＇s Handbook Chapter 3, Section 1.
38. *When there are new supplements to Ocean Passages for the World, the previous ones are().
37. () provides a selection of commonly used routes with their distances between principal ports and important positions.
36. Data relating to the direction and velocity of rotary tidal currents can be found in the ().
