通过三维动画软件实现浏览自然景观及展示游览路线应采用何种动画方式实现？简述动画的基本实现过程。
评析“中国气候威胁论”并指出中国应对气候变化问题的战略选择。
What makes going to space the most expensive vacation is the enormous cost involved in ______.
______ had dominated society for 10,000 years but declined rapidly in the 20th century.
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