航海英語GPS、DF及LC的使用單項選擇題每日一練(2019.01.16)

來源：考試資料網(wǎng)

1 Quadrantal error in a gyrocompass has its GREATEST effect（）.

2 To obtain accuracy in fixing by DF cross bearings，（）should be used.

3 Most GPS receivers use the doppler shift of the carrier phase to compute（）.

4 To obtain accuracy in fixing by DF，（）and three stations should be used.

5 To obtain accuracy in fixing by DF，（）and three stations should be used.

航海英語GPS、DF及LC的使用單項選擇題每日一練(2019.01.16)