航海英語航路指南單項選擇題每日一練(2019.01.18)

來源：考試資料網

1 The period at high or low tide during which there is no change in the height of the water is called the （）.

2 （）amplify charted detail and contain information needed for safe navigation.

3 Due to lapse of time the risk in these areas to surface navigation is now considered （）than the ordinary risks of navigation，but a very real risk still exists with regard to anchoring，fishing or any form of submarine or seabed activity.

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4 The height of eye correction is smaller than geometrical dip because of （）.

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5 A line of position derived by radar range from an identified point on a coast will be a(n) （）.

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