航海英語包裝危險品與IMDG規(guī)則單項(xiàng)選擇題每日一練(2019.01.12)

來源：考試資料網(wǎng)

1 Corrosive liquids and acids should have what kind of label? （）

2 Vessels carrying（）must not willfully wash decks or holds.

3 Calcium carbide and acetone are counteractive（）nature.

4 The case for Dangerous Goods in question was badly crushed and was returned to dock shed and （）.

5 If the meter needle of the oxygen indicator cannot be set to zero，what should be done? （）