消防员佩戴呼救器在有爆炸危险的场所进行救援时， 当呼救器低电压告警后，应立即在现场更换了电池。
1、正确错误
暂无解析
Wedon’tacceptpaymentinUSdollars.PleaseconcludethebusinessintermsofSwissfrancs.
甩挂运输的优势有（）。
Wewishtointroduceourselvestoyouasastate-ownedcorporationdealingexclusivelyinlightindustrialgoods.
Notreally.Itisshrewdbusinessoperations.
Ihopedwecandobusinesstogetherandlookingforwardtohearingfromyousoon.
