航海英語(yǔ)船舶規(guī)范單項(xiàng)選擇題每日一練(2019.02.20)

來(lái)源：考試資料網(wǎng)

1 A celestial body will cross the prime vertical circle when the latitude is numerically（）.

2 A chain bridle is used when towing astern because it（）.

3 A celestial body’s complete orbit around another body is（）.

4 A buoy with a composite group-flashing light indicates a(n)（）.

5 “safe speed” is defined as that speed where（）.