(2013·湖北武汉武昌区高三联考)One way to ________ species under threat of extinction—whatever the cause—is to remove them to zoos or parks and feed them there.

A．betray

B．resist

C．preserve

D．abandon

在有产权纠纷的房屋拆迁前，拆迁管理部门应当组织拆迁人对被拆除房屋进行评估，作勘察记录，并将有关材料向公安机关办理证据保全。( )