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jan 1, 221 BC - 【秦朝】地方行政机构分为郡、县两级。郡是地方最高行政机构，置郡守、郡丞和郡尉，另设监御史掌监察。

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人教版高中历史|Chinese students' PEP SENIOR HIGH HISTORY TEXTBOOKS

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jan 1, 221 BC

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~ 2248 years ago

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