单项选择题
A.are exceptionally dusty and leave a residue
B.are liquid but are in containers
C.are susceptible to damage by tainting
D.give off fumes that may damage other cargoes
单项选择题 On the fully containerized ship，approximately one-third or more of the cargo is on deck above the rolling center. Top stowed containers are subject to（）.
单项选择题 The advantage of container transportation is to（）.
单项选择题 There should be at least two tiers of dunnage for the cargo loaded on tank top，the first tier laid（）.