航海英語航海學(xué)基本知識單項選擇題每日一練(2019.03.11)

來源：考試資料網(wǎng)

1 A plane that cuts the Earth’s surface at any angle and passes through the center will always form（）.

2 A lateral system buoy displaying a quick light（）.

3 A vessel is（）when she is not at anchor，made fast to the shore，or aground.

4 A gnomonic projection is based on a(n)（）.

5 A spherical buoy may be（）.