版本：
文件：
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https://cdn.bootcdn.net/ajax/libs/ScrollMagic/2.0.8/ScrollMagic.js
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https://cdn.bootcdn.net/ajax/libs/ScrollMagic/2.0.8/ScrollMagic.min.js
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https://cdn.bootcdn.net/ajax/libs/ScrollMagic/2.0.8/plugins/animation.gsap.js
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https://cdn.bootcdn.net/ajax/libs/ScrollMagic/2.0.8/plugins/animation.gsap.min.js
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https://cdn.bootcdn.net/ajax/libs/ScrollMagic/2.0.8/plugins/animation.velocity.js
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https://cdn.bootcdn.net/ajax/libs/ScrollMagic/2.0.8/plugins/animation.velocity.min.js
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https://cdn.bootcdn.net/ajax/libs/ScrollMagic/2.0.8/plugins/debug.addIndicators.js
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https://cdn.bootcdn.net/ajax/libs/ScrollMagic/2.0.8/plugins/debug.addIndicators.min.js
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https://cdn.bootcdn.net/ajax/libs/ScrollMagic/2.0.8/plugins/jquery.ScrollMagic.js
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https://cdn.bootcdn.net/ajax/libs/ScrollMagic/2.0.8/plugins/jquery.ScrollMagic.min.js