未知题型 Clearly present the topic of the research paper you plan to write and publish the next. Although you are encouraged to write the report in English, Chinese presentation is also accepted at this stage. The topic report from can be downloaded from the Week-1 courseware folder.

未知题型 根据我国《物权法》中的规定，简述物权变动的原因。

单项选择题 混合动力汽车是指车上装有（ ）动力源的汽车。