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Oil and coal

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轉寄 列印
第1級人氣樹(0)
人氣指樹
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內容簡介top Oil and Coal 簡介 The reader follows a student's journal as the student learns about oil and coal as an energy source, including how we used oil and coal in the past, how we use it today, and how we may use oil and coal in the future.

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