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单项选择题
A. large bags
B. big drums
C. containers
D. large cases
单项选择题
A. only above
B. only below
C. both above and below
D. only under
单项选择题
A.Grains.
B.Iron ore.
C.Cotton.
D.Coal.
单项选择题
A. bulk cargo and container cargo
B. bulk cargo and general cargo
C. bulk cargo and liquid cargo
D. dry cargo and liquid cargo