问题
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What does the speaker suggest people should do when they go shopping?A.Avoid over-packagin
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Why does Nigel suggest that business travelers avoid big airports?A.Because all flights in
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Why does the professor discuss the presence of zinc in paint pigments?A.To explain why som
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Why does the student want to take classes at City College?A.Because Hooper University does
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Why is it easy to avoid meeting animals according to the man?A.Because he can run very fas
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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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