航海英語(yǔ)緊急通信單項(xiàng)選擇題每日一練(2019.01.19)

來(lái)源：考試資料網(wǎng)

1 Coast Guard approved buoyant work vests（）.

2 If you see someone fall overboard from a vessel，you should（）.

3 Cargo vessels being navigated，and fitted with emergency lighting and power systems，shall have their emergency systems tested at least once（）.

4 Thirty-five percent of the breaking strength of an anchor cable is generally accepted as the（）.

5 The signal for a fire emergency on an OSV is（）.