相关题目
13. Tidal streams and currents are described by the direction ().
12. The overall set in Malacca Strait is to the NW, but for May to September there is a tendency for SE sets to prevail in some N and central parts. In this sentence, set refer to ().
11. Depth in the routes ( ) vary between 20 m and about 23m, but there are many areas of sandwaves and depths are liable to change. The statement infers that().
10. Malacca Strait is 805 km () and () from 64 km in the S to 257 km in the N.
9. () is the main channel of water exchange between Indian Ocean and South China Sea.
8. Many of the lights on this coast are placed so high as to be frequently obscured by ().
7. Mariners are advised not to () in the vicinity of submarine cables, and risk prosecution if cables are damaged.
6. In Admiralty Sailing Directions, heights of objects refer to the height of the structure above the ().
5. Place names used on board ships should be those ().
4. *In Admiralty Sailing Direction, the distances at sea are given in (), and on land are in().
