<p><a href="http://www.so.com/s?q=%E6%95%B0%E5%AD%A6&ie=utf-8&src=internal_wenda_recommend_textn" target="_blank" style="margin: 0px; padding: 0px; text-decoration: none; color: rgb(0, 0, 0); font-size: 16px; line-height: 28px; outline: 0px; font-family: 'PingFang SC', 'Lantinghei SC', 'Microsoft YaHei', arial; white-space: pre-wrap; background-color: rgb(255, 255, 255);"><span style="margin: 0px; padding: 0px;">数学</span></a><span style="margin: 0px; padding: 0px; color: rgb(102, 102, 102); line-height: 28px; font-family: 'PingFang SC', 'Lantinghei SC', 'Microsoft YaHei', arial; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255);">来源于实践又服务于实践,因此只要我们仔细观察身边的事</span><a href="http://www.so.com/s?q=%E5%92%8C%E7%89%A9&ie=utf-8&src=internal_wenda_recommend_textn" target="_blank" style="margin: 0px; padding: 0px; text-decoration: none; color: rgb(0, 0, 0); font-size: 16px; line-height: 28px; outline: 0px; font-family: 'PingFang SC', 'Lantinghei SC', 'Microsoft YaHei', arial; white-space: pre-wrap; background-color: rgb(255, 255, 255);"><span style="margin: 0px; padding: 0px;">和物</span></a><span style="margin: 0px; padding: 0px; color: rgb(102, 102, 102); font-family: 微软雅黑; line-height: 28px; background-color: rgb(255, 255, 255);"><span style="margin: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 'PingFang SC', 'Lantinghei SC', 'Microsoft YaHei', arial; font-size: 16px; white-space: pre-wrap;">,多思善问,就会发现很多和数学知识有直接联系的东西。</span></span></p>