试题与答案

油田含油污水中()是主要的污染物,回注时必须设法除去。A.原油 B.CO2 C.H2

题型:单项选择题

题目:

油田含油污水中()是主要的污染物,回注时必须设法除去。

A.原油

B.CO2

C.H2S

D.机械杂质

答案:

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