问题
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What is the price difference between airmail service and postal service?A.6 dollarsB.6. 8
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Whats the difference between "postal worker" and "postman" according to the passage?A.The
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What is the news mainly about?A.US government needs cyber security.B.Postal service in the
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共用题干第二篇The Development of American Postal
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共用题干第二篇The Development of American Postal
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共用题干第二篇The Development of American Postal
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