加入期间特定设备批准 Specific device validation during joining
On Sunspace were discussion groups for each one of the lectures and asked students to pose their prepared questions they went directly to the discussion space about that particular lecture.
在该空间中每个讲座,都存在相应的谈论组,学生要提出准备的问题,然后直接针对特定讲座,展开讨论。
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