如果您想要创建一份全新报告来详细列出仅与桌面设备用户相关的来源/媒介，并将该报告添加到左侧导航栏，则应使用哪个新报告模板？

The "Traffic acquisition" template is the correct choice because it is specifically designed to report on how users arrive at your site, including source and medium dimensions. By creating a new report from this template, you can then apply a filter to include only desktop device users, fulfilling the requirement for a report detailing source/medium for desktop users. The "Demographics details" template focuses on user characteristics like age and gender, not acquisition. The "Landing page" template reports on the first page users visit, not their source. The "Technology details" template focuses on devices, browsers, and operating systems, not the acquisition channels.