喷灯点火有什么要求（） ["清理工作场所的易燃物","喷灯不得在带点导线、带电设备、变压器、油开关，及易燃物附近点火","为了点火方便与快捷，喷灯与喷灯之间可以借火点燃","由于点火的火焰不是很大，所以没有什么要求"]
A more sophisticated pressure reducing valve incorporates a pilot valve which controls the fluid above the valve operating piston in response to downstream pressureThe bold and italic word “which” means （）. ["a pressure reducing valve","a pilot valve","an operating piston","downstream pressure"]
“单站核算”投资成本项数据来源于（） ["项目管理系统","CRM系统","财务核算系统","物业系统"]
什么是烟草物流配送物资？
全低压制抓机碰到紧急停电时应怎样操作？
烟用物资采购遵循的原则有哪些？
