航海英語磁羅經(jīng)與陀螺羅經(jīng)的使用單項選擇題每日一練(2019.01.13)

來源：考試資料網(wǎng)

1 In more recent years，（）has been used by civilians in many new ways to determine positions，such as in automobile and boat navigation，hiking，emergency rescue，and precision agriculture and mining.

點擊查看答案

2 The compass error of a magnetic compass that has no deviation is（）.

點擊查看答案

3 Magnetic compass deviation（）.

點擊查看答案

4 Variation is a compass error that you（）.

點擊查看答案

5 The permanent magnetism of a vessel may change in strength due to（）.

點擊查看答案