【判断题】【消耗次数：1】
人体在运动过程中，生理机能能力的变化经历了上升、平稳。下降三个阶段。
①
正确
②
错误
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【多选题】
远程教育经历了三个发展阶段，是指（ ）
①
19世纪中叶兴起的函授教育
②
20世纪初期兴起的广播电视教育
③
20世纪末期产生的以计算机和网络技术为基础的远程教育
④
21世纪初期流行的虚拟学习社区
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having heard
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to hear
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hearing
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being heard
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to train properly
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being trained properly
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to have discovered
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when
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which
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where
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The bridge which ________last year looks really beautiful.
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was built
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built
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had been built