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BIM has been gradually applied in subway projects, and has achieved good results in information construction, reasonable arrangement of construction procedures, speeding up construction speed, saving project cost, etc. The application of BIM technology makes many people see its advantages, thus promoting its further development and the introduction of BIM related technologies.　　据悉，索尼已经与很多家知名的App达成协议，将会在电影中用到他们的App，其中包括音乐应用Spotify。Wherever you use ontology objects, you can replace it with using proxies.　　痞子蔡每晚在网上与轻舞飞扬的交流成了一种默契，他向轻舞飞扬描述在网络上通常存在的三种人，并告诉轻舞飞扬她就是“第二种人”，并猜测她或者即将老去，或者时日无多，沉默良久的轻舞飞扬对他说，她很想见他。The attack uses the method of sending a large number of domain name resolution requests to the attacked server, Usually the domain name requested to be resolved is randomly generated or does not exist on the network. When the attacked DNS server receives the domain name resolution request, it will first look for whether there is a corresponding cache on the server. If it cannot be found and the domain name cannot be directly resolved by the server, the DNS server will recursively query the domain name information from its upper DNS server. The process of domain name resolution brings a great load to the server. If the number of domain name resolution requests exceeds a certain number per second, the DNS server will time out to resolve domain names.