Trắc nghiệm: The Postal Service used the Roman god Mercury as its symbol. This was replaced in 1837 with a running pony. | Gửi trắc nghiệm |
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Trắc nghiệm: The Postal Service used the Roman god Mercury as its symbol. This was replaced in 1837 with a running pony. | Gửi trắc nghiệm |