项目综合论证与评估所综合的主要内容包括哪几个方面？
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Where shall the key to C02 room be kept?（）
A. In master's cabin
B. In third office's cabin
C. In a break-glass-type enclosure conspicuously located adjacent to the room
D. In a locked locker conspicuously located adjacent to the room
目前操作系统有3种安装方式，即升级安装、全新安装和双重启动安装。（）
A. 正确
B. 错误
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