航海英語液體散裝危險品與IBC規(guī)則單項選擇題每日一練(2019.01.22)

來源：考試資料網(wǎng)

1 According to the Chemical Data Guide，which reactive group(s) is/are not compatible with the products polybutene and o-xylene? （）

2 Using an inert gas system on a tanker has which advantage(s)? （）

3 The designations A，B，C，D and E grades of cargo refer to the（）.

4 The purpose of the deck seal in an inert gas system is to prevent（）.

5 Reid vapor pressure is（）.