问题
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Why does the author think that sixteen is the key, crucial and natural age?A.Adults would
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Why does the professor mention wheels and spheres?A.To illustrate how movement can be expr
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Why is the price of hostels low?A.People bring their own equipment.B.A ruined castle does
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What does the professor mainly discuss?A.Why some whales do not migrateB.How and why balee
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Why does the professor mention the Kennedy Center and Lincoln Center?A.To give examples of
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In paragraph 3, why does the author provide information about the types of crops grown and