投影仪是利用了凸透镜能成（）像的原理

A、溶液易起泡，影响正常操作Solution easy to bubble, affecting the normal operation；
B、单位体积吸收过多酸气后易于腐蚀设备Too much acid gas per unit volume can corrode equipment easily；
C、不能脱除有机硫，当天然气中含羟基硫时将增大乙醇胺消耗量Organic sulfur cannot be removed and the consumption of ethanolamine increases when natural gas contains hydroxyl sulfur；
D、水、电、汽耗量大，硫磺回收需另增设一套装置Water, electricity, steam consumption is large, sulfur recovery needs another set of equipment

A.氧气管
B．心电监护仪
C．氧袋
D．简易呼吸囊

A.理解了工作的方法，就能顺畅开展工作，改善也能顺利进行
B．以QCstory
B.定点摄影也是按照QCstory的思路来推进和总结的
D．反省要回顾从计划到实施、确认的各环节，仔细分析