【判断题】【消耗次数：1】
通风系统按照空气动力不同分为自然通风和机械通风
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正确
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错误
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新冠患者隔离的场所可采取排风（包括自然通风和机械排风）措施，保持室内空气流通。每日通风 2～3 次，每次不少于（ ）分钟
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在自然通风的情况下，室内气温仍然到达（）摄氏度时，应采用人工通风的辅助设备，如电扇、空调、排风扇等，是室内外空气得以交换，弥补自然通风的不足。
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25
②
30
③
20
④
15
【简答题】
单层厂房自然通风是利用空气的[填空(1)]和[填空(2)]进行的
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