航海英語(yǔ)GPS、DF及LC的使用單項(xiàng)選擇題每日一練(2019.01.21)

來(lái)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，（）and three stations should be used.

3 A compass card without north-seeking capability that is used for relative bearings is a(n)（）.

4 （）is not a factor which will affect the accuracy of GPS receiver.

5 The receiver uses（）satellites to compute latitude，longitude，altitude，and velocity．

航海英語(yǔ)GPS、DF及LC的使用單項(xiàng)選擇題每日一練(2019.01.21)