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[원본지문] 사설부교재 > Visual_Audio > TED > Mathematics > How high can you count on your fingers? (Spoiler: much higher than 10) - James Tanton
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[원본지문] 사설부교재 > Visual_Audio > TED > Design_Engineering and Technology > Meet a 12-year old app developer
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[원본지문] 사설부교재 > Visual_Audio > TED > Science and Technology > The three different ways mammals give birth - Kate Slabosky
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[원본지문] 사설부교재 > Visual_Audio > TED > Education > Why do people get so anxious about math? - Orly Rubinsten
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[원본지문] 학교외부지문 > 행신고 > 1학년 > 2학기기말 > Halloween
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