单项选择题
Certain cargoes must be segregated because of their（）.
A.inherent characteristics B.weight C.destination D.danger to humans
单项选择题 Cargo that gives off fumes that may contaminate other cargo is known as a(n)（）.
单项选择题 Bilge soundings indicate（）.
单项选择题 Be careful（）mix the inflammable cargo with that kind.
