本报告主要包括以下内容： （1） 渤海及其邻近地区的地震活动性与地震危险性估计；
This report mainly includes the following contents:(1) The seismicity and seismic risk assessment of the Bohai Sea area and its vicinity.
它的主要内容应该包括邀请的理由、活动的时间和地点等。
The main content should include the reason of invitation and place and time of activity, etc.
通过文献资料法分析认为，唐代体育诗歌描写的内容主要包括当时流行运动项目、节令体育、女子体育以及休闲娱乐活动等。
Through document information law, the author think that the sports poetry in Tang Dynasty described popular sports, holiday sports, female sports as well as recreations and so on.
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