单项选择题
I（）rather not shift the rice to Hatch No.2.
A.shall B.should C.would D.had to
单项选择题 For cargoes（）grain meals，coal，ventilation is needed to prevent them（）spontaneous combustion.
单项选择题 Bulk cargo refers to（）.
单项选择题 Before loading bulk grain，bilge wells must be covered to（）.
