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什么是海沟?
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什么是珊瑚礁?
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什么是生态系统?
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什么是海洋?
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{"type":"multi-choice","id":"4802","dataJson":{"type":"multi-choice","slide_id":28396,"key":4802,"prompt":"\u003cp\u003e什么是海洋?\u003c/p\u003e","validResponse":[5283],"use_data":false,"question_body":"","question_video_url":"","question_fileboy_image_id":"","options":[{"label":"海中的岩脊,是许多海洋动物和植物的家园。","value":5285,"fileboyId":"e4b4a662-da08-40fd-bc6f-d0ea7fad83b1"},{"label":"一个很大的海域,覆盖了世界表面的 70%。","value":5283,"fileboyId":"f82ff083-68ee-489d-8a93-dac7aeb1d02e"},{"label":"动物和植物生活的区域,在这里它们相互依存。","value":5284,"fileboyId":"e3ce1516-dbe1-4d99-b63c-e9f6db3bf0e4"},{"label":"被其他海洋生物食用的微小植物和动物。","value":5282,"fileboyId":"39c411e8-2463-4e3a-a142-f0594a864619"},{"label":"海底深而窄的洞。","value":5286,"fileboyId":"32e53390-8a30-43bd-9a61-d2d07cedea2b"}],"question_data":{"body":"如果你从太空看向地球,你将会发现地球大部分是蓝色的。这是因为大约 70% 的地球表面都被水覆盖。而且地球上 97% 的水都在海洋里。","video":{"type":"fileboy","url":"c2b1ea39-6e39-455e-8515-977ef2ae5760"},"image_url":null},"limitChoices":{"min":1,"max":1}}}
什么是浮游生物?
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