航海英語航海儀器使用說明書單項選擇題每日一練(2019.01.14)

來源：考試資料網(wǎng)

1 My gyro-compass（）is two degrees east.

2 My gyro-compass error is（）.

3 A barometer showing falling pressure indicates the approach of a（）.

4 A deadhead is a(n)（）.

5 The microsecond unit of time is used in radar applications. The microsecond represents which of the following?（）.