()即根据演练工作需要采取必要安全防护措施确保参演、观摩等人员以及生产运行系统安全。
A、演练工作安全保障A
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Nearbyweretwoboats____theyhadcometothelonelyisland.
Withonelegbrokeninthatcaraccident,hecannotevenwalk,____run.
Idon’tunderstand____believehim.
Oneoftherequirementsforafireisthatthematerial____toitsburningtemperature.
Roy:______It'sgettinglate.
Ellen:Mustyougosoon?
