航海英語(yǔ)甲板與船體保養(yǎng)單項(xiàng)選擇題每日一練(2019.01.08)

來(lái)源：考試資料網(wǎng)

1 What（）to him is whether the job of a deck officer allows him to pursue his studies.

2 The margin plate is the（）.

3 On cargo booms，preventers are（）.

4 Solid waste generation，and electricity and water consumption are costly and have their own set of environmental（）.

5 On navigational aids，what does the light characteristic Fl(2+1) mean?（）