历史研究应坚持有一分材料说一分话，材料之外“一点也不越过去说”。以下史实到结论的推断，符合这一原则的是<table style="border: currentColor; margin-left: 28.35pt; border-collapse: collapse; mso-border-left-alt: 0.5000pt solid windowtext; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext; mso-border-insideh: 0.5000pt solid windowtext; mso-border-insidev: 0.5000pt solid windowtext; mso-padding-alt: 0.0000pt 5.4000pt 0.0000pt 5.4000pt;" border="1" cellspacing="0" _dj="MsoNormalTable"><tbody><tr><td style="padding: 0pt 5.4pt; border: 1pt solid windowtext; mso-border-left-alt: 0.5000pt solid windowtext; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;" valign="top"></td><td style="border-width: 1pt 1pt 1pt medium; border-style: solid solid solid none; border-color: windowtext windowtext windowtext currentColor; padding: 0pt 5.4pt; mso-border-left-alt: none; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;" valign="top">史实</td><td style="border-width: 1pt 1pt 1pt medium; border-style: solid solid solid none; border-color: windowtext windowtext windowtext currentColor; padding: 0pt 5.4pt; mso-border-left-alt: none; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;" valign="top">结论</td></tr><tr><td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor windowtext windowtext; padding: 0pt 5.4pt; mso-border-left-alt: 0.5000pt solid windowtext; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;" valign="top">A</td><td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor windowtext windowtext currentColor; padding: 0pt 5.4pt; mso-border-left-alt: none; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;" valign="top">商鞅变法“废分封，行郡县”</td><td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor windowtext windowtext currentColor; padding: 0pt 5.4pt; mso-border-left-alt: none; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;" valign="top">秦国建立了专制主义中央集权制度</td></tr><tr><td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor windowtext windowtext; padding: 0pt 5.4pt; mso-border-left-alt: 0.5000pt solid windowtext; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;" valign="top">B</td><td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor windowtext windowtext currentColor; padding: 0pt 5.4pt; mso-border-left-alt: none; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;" valign="top">董仲舒“罢黜百家，独尊儒术”</td><td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor windowtext windowtext currentColor; padding: 0pt 5.4pt; mso-border-left-alt: none; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;" valign="top">文化开始成为政治权力的附庸</td></tr><tr><td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor windowtext windowtext; padding: 0pt 5.4pt; mso-border-left-alt: 0.5000pt solid windowtext; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;" valign="top">C</td><td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor windowtext windowtext currentColor; padding: 0pt 5.4pt; mso-border-left-alt: none; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;" valign="top">行省“有诸侯之镇，而无诸侯之权”</td><td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor windowtext windowtext currentColor; padding: 0pt 5.4pt; mso-border-left-alt: none; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;" valign="top">元朝中央集权得以加强</td></tr><tr><td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor windowtext windowtext; padding: 0pt 5.4pt; mso-border-left-alt: 0.5000pt solid windowtext; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;" valign="top">D</td><td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor windowtext windowtext currentColor; padding: 0pt 5.4pt; mso-border-left-alt: none; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;" valign="top">明太祖屡次宣布“通番禁令”</td><td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor windowtext windowtext currentColor; padding: 0pt 5.4pt; mso-border-left-alt: none; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;" valign="top">明朝严禁中外通商贸易</td></tr></tbody></table>