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Deep replication: After an object is replicated, both the basic data type and the reference type are recreated. In short, the deep copy has been completely and completely copied, while the shallow copy is not completely copied.广州武学会为维护社会安宁，全力阻止洋人私运鸦片进广州，铁桥三单枪匹马就将重兵押运的数车鸦片截在了广州城外。洋人誓要铲除武学会，买通叛徒乾坤豹设计杀死了老会长，借竞选新会长之机，暗中设计让武学会的人自相残杀，铁桥三也因此遭奸人陷害。最终，邪不压正，在朋友和百姓们的支持下，铁桥三肃清了勾结奸人的叛徒乾坤豹，重整武学会，向百姓们告知鸦片的危害，烧毁了流入城内的鸦片，捣毁了列强们企图以鸦片控制民众的阴谋。Liz Bonnin presents a controversial and provocative episode of Horizon, investigating how new scientific research is raising hard questions about zoos - the film explores how and why zoos keep animals, and whether they need to change to keep up with modern science or ultimately be consigned to history.Should zoos cull their animals to manage populations? Liz travels to Copenhagen Zoo, who killed a giraffe and fed it to the lions, to witness their culling process first hand. They think it is a natural part of zoo keeping that is often swept under the carpet. Should some animals never be kept in captivity? In a world exclusive, Liz visits SeaWorld in Florida and asks if captivity drove one of their orcas to kill his trainer.But could zoos be the answer to conserving endangered species? Liz examines their record, from helping breed pandas for the wild to efforts to save the rhinos. She meets one of the last surviving northern white rhinos and discovers the future of this species now lies in a multimillion-dollar programme to engineer them from stem cells. Veteran conservation scientist Dr Sarah Bexell tells Liz the science of captive breeding is giving humanity false hope.A5.1. 3.2 Ear pressure function check:Don't be funny upstairs, the level of pilots is not one for fighting and one for smoking. What age is it when recruits finish going to veterans? Is it a crowd tactic? In the integrated modern war, the outdated theory of using recruits first should have been eliminated long ago.嬴子夜这才点点头，她不知道姑姑的如此强烈的建议到底是为了什么。各有特长刑警一起对付国家级危机威胁。