航海英語固體散貨運(yùn)輸及有關(guān)規(guī)則單項(xiàng)選擇題每日一練(2019.01.25)

來源：考試資料網(wǎng)

1 A grapnel is a（）.

2 Atmospheres laden with coal dust or grain dust caused by loading these cargoes（）.

3 Progressive flooding on a ship is controlled by securing watertight boundaries and（）.

4 In vessel construction，beam brackets are triangular plates that join the deck beam to a（）.

5 Transverse frames are more widely spaced on a ship that is designed with the（）.