问题
单项选择题
Another name for coal naphtha that would appear on a dangerous cargo manifest is（）.
A.benzene
B.tar
C.middle oil
D.toluene
答案
参考答案：A
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Another name for coal naphtha that would appear on a dangerous cargo manifest is（）.
A.benzene
B.tar
C.middle oil
D.toluene
参考答案：A