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1A_ SCIENCE_CH5.3_Energy sources_Bk_P.130-131
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1A_ SCIENCE_CH5.3_Energy sources_Bk_P.130-131
1A_ SCIENCE_CH5.3_Energy sources_Bk_P.128-129
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1A_ SCIENCE_CH5.3_Energy sources_Bk_P.128-129
1A_ SCIENCE_CH5.3_Energy sources_Bk_P.126-127
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1A_ SCIENCE_CH5.3_Energy sources_Bk_P.126-127
1A_ SCIENCE_CH5.3_Energy sources_Bk_P.125
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1A_ SCIENCE_CH5.3_Energy sources_Bk_P.125
1A_ SCIENCE_CH5.3_Energy sources_Bk_P.123-124
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1A_ SCIENCE_CH5.3_Energy sources_Bk_P.123-124
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