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[audioFiles]2017m5s/audio_ezfj_200_201705[/audioFiles] Petroleum Petrole

游客2023-10-30  35
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答案     Petroleum
    Petroleum has been important since ancient times. / The Greek historian told of its use in the form of pitch for building and road making. / Petroleum is a fossil fuel. / The liquid comes from the remains of plants and animals / that died millions of years ago. / These remains were buried deep below levels of rock over time and under great pressure. / The modern history of oil started in the middle of the 1800s. / At that time, a method was found to make kerosene fuel from petroleum. / This kind of fuel became popular for heating and lighting. /
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