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[원본지문] 사설부교재 > National Geographic > Reading Explorer4 > Unit 4 > 4A: DESIGN BY NATURE: BIOMIMETICS
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[원본지문] 사설부교재 > National Geographic > Reading Explorer4 > Unit 3 > 3B: THE BATTLE FOR BIOTECH
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[원본지문] 사설부교재 > National Geographic > Reading Explorer 4 > unit 3 > 3A: HOW SAFE IS OUR FOOD?
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[원본지문] 사설부교재 > National Geographic > Reading Explorer4 > Unit 2 > 2B: Feathers of love
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[원본지문] 하이잭교재 > Reading Goes Up > Level 6 > Chapter16 > 25번
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