【单选题】【消耗次数：1】
以下哪种材料不属于常用的三大建筑材料（ ）。
①
水泥
②
玻璃
③
钢材
④
木材
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【简答题】
建筑材料按照材料在工程中的作用分类可以分为_____ ，_____ 。
【单选题】
以下哪一项不属于写作材料的作用。
①
在写作之前，广博的原始材料的积累是形成观点、提炼思想的基础。
②
在写作中，有效地选择和组织材料是准确表达思想的支柱。
③
在写作后，材料可以来用证明作者的观点是完全客观的，不带了作者的主观发挥。
④
在写作中，有效地选择和组织材料是准确表达主题的重要支撑。
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working out
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to erect
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to be given
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