单项选择题
The （）is pumped onto the ship at the loading port by shore pumps.
A. oil B. gas C. water and fuel D. timber
单项选择题 The standard size of the containers is （）high.
单项选择题 This is deck cargo. （）stow it in the holds.
单项选择题 Before leaving the harbour, all derricks must be （）properly.
