Petrol is refined from the ________ oil we take out of the ground. ( 章节：1 难度：3)_做题室

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Petrol is refined from the ________ oil we take out of the ground. ( 章节：1 难度：3)

A、crude
B、rude
C、fresh
D、original

正确答案:A

答案解析:有

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