【单选题】【消耗次数:1】
高速公路和一级公路沥青混凝土面层总厚度代表值的允许偏差为______。
2mm
4mm
6mm
8mm
参考答案:
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相关题目
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①  正确
②  错误
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【单选题】 导程L0=8mm的丝杠的总质量为6kg,标称直径为40mm,则其转动惯量为( ??)kg·mm2。
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【多选题】 高速公路沥混凝土路面压实度标准值是______。
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随机题目
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①  to give
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