问题
单项选择题
An inland oil barge must have equipment available to remove an on-deck oil spill of at least（）.
A.one barrel
B.two barrels
C.five barrels
D.ten barrels
答案
参考答案：A
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An inland oil barge must have equipment available to remove an on-deck oil spill of at least（）.
A.one barrel
B.two barrels
C.five barrels
D.ten barrels
参考答案：A