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高层建筑发生火灾，烟雾是阻碍人们逃生和进行灭火行动、导致人员死亡的主要原因之一。建筑中设置防排烟系统的作用是将火灾产生的大量烟气及时予以排除以及阻止烟气向防烟分区以外扩散，以确保建筑物内人员的顺利疏散，安全避难和为消防队员创造有利扑救条件。（  ）

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未知题型
某监理公司承担了一机电安装工程施工阶段(包括施工招标)的监理任务。经过施工招标，业主选定A工程公司为中标单位。在施工合同中双方约定，A工程公司将没备安装、配套工程和桩基工程的施工分别分包给B、C和D三家专业工程公司，业主负责采购设备。
[问题]
该工程在施工招标和合同履行过程中发生了下述事件：
1．施工招标过程中共有6家公司竞标。其中F工程公司的投标文件在招标文件要求提交投标文件的截止时间后半小时送达；G工程公司的投标文件未密封。
评标委员会是否应该对这两家公司的投标文件进行评审?为什么?
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A公司的做法妥当否?为什么?
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A公司的要求合理吗?为什么?
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监理工程师是否应子以签认?为什么?
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未知题型
______ is 'needle-like'.
未知题型
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