A、<p><span style="font-family: 宋体; font-size: 13px; line-height: 19.5px; ">简化管理</span></p>
B、<p><span style="font-family: 宋体; font-size: 13px; line-height: 19.5px; ">降低成本</span></p>
C、<p><span style="font-size: 13px; line-height: 19.5px; font-family: 宋体;">强大的扩张功能</span></p>
D、<p><span style="font-family: 宋体; font-size: 13px; line-height: 19.5px; ">效率高</span></p>