单选题
发布日期:2021-03-22
oxygen and explosion meter when it is used for detection of flare gases
self-contained breathing apparatus,when used as protection from gas leaking from a refrigeration unit
boots and gloves that are made of rubber or electrically non-conductive material,if used when repairing electrical equipment
lifeline,if used by personnel entering a compartment which might be deficient of oxygen
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简述法兰西第五共和国政府体制的特点。
血瘀产后发热的最佳选方是()
巩膜组织学特点决定了巩膜的病理变化比较单纯,通常表现为肉芽肿性增殖反应
临床试验过程中发生严重不良事件的,研究者应当在多长时间内报告有关部门()
AMI发生后升高并超过参考值上限最快的是()。
最不适用于成人颅脑超声检查的探头频率是()
减量化
在我国,大豆和豆油、豆粕之间一般存在着“100%大豆=18%豆油+()豆粕+损耗”的关系。
下列各项标志细胞损伤不可复的为()
该产妇是否可以试产,及试产的时间是( )。
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