单选题 Admiralty Sailing Directions are published by____.

单选题 Mariners are advised not to anchor nor____in the vicinity of pipelines.

单选题 The tide is generally semi-diurnal in Malacca Strait. It is indicated that you may experience____each day.

单选题 Bearings and directions used in Sailing Directions when given in degrees are reckoned from 000° (North) to 359°____.

单选题 In Admiralty Sailing Direction, the distances at sea are given in____and on land are in____.

单选题 ____ is the main channel of water exchange between Indian Ocean and South China Sea.

单选题 Precautionary areas and IMO adopted TSS have been established through the Straits between Per matang Sedepa (One Fathom Bank) and the entrance to South China Sea in the vicinity of Horsburgh Light. In this sentence, "TSS" is the abbreviation of____.

单选题 The overall set in Malacca Strait is to the NW, but from May to September there is a tendency for SE sets to prevail in some N and central parts. In this sentence, "set" refers to____.