航海英語航海通告與警告單項選擇題每日一練(2019.01.13)

來源：考試資料網(wǎng)

1 Charted depths（）by 2 meters due to state of the winds．

2 Fog is most commonly associated with a(n)（）.

3 Contour elevations on this chart refer to heights in feet above mean （）.

4 Which would influence a magnetic compass（）.

5 On the high seas，a fog signal consisting of one prolonged blast followed by four short blasts would indicate the presence of a（）.