OSITION: relative; TOP: 12pt; mso-text-raise: -12.0pt"><font face="Times New Roman"> </span></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"">的相反数是</span><u><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"><span style="mso-spacerun: yes"><font face="Times New Roman"> </span></span></u><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"">;倒数是</span><u><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"><span style="mso-spacerun: yes"><font face="Times New Roman"> </span></span></u><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"">;</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"></span><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"><font face="Times New Roman">2</span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"">、</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"><font face="Times New Roman">205770000</span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"">用科学记数法表示为</span><u><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"><span style="mso-spacerun: yes"><font face="Times New Roman"> </span></span></u><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"">;</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"></span><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"><font face="Times New Roman">3</span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"">、保留两个有效数字</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"><font face="Times New Roman">5147.9</span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"">≈</span><u><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"><font face="Times New Roman"><span style="mso-spacerun: yes"> </span><span style="mso-spacerun: yes"></span></span></u><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"">,它精确到<u> </u>位;</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"></span><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"><font face="Times New Roman">4</span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"">、多项式</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"><font face="Times New Roman">x3</span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"">-</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"><font face="Times New Roman">2y3</span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"">-</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt"><span style="
OSITION: relative; TOP: 12pt; mso-text-raise: -12.0pt"><font face="Times New Roman"> </span><font face="Times New Roman">xy2 </span><span style="FONT-FAMILY: 宋体; mso-bidi-font| 欢迎光临 祝孩子们天天健康快乐! (http://www.xetjy.com/) | Powered by Discuz! X3.2 |