是革兰阴性杆菌所产生的热原（） ["热原","内毒素","脂多糖","磷脂","蛋白质"]
下列口腔颌面部肿瘤中容易发生肺部转移的是（） ["牙龈癌","舌癌","黏液表皮样癌","颊癌","腺样囊性癌"]
与髓的关系密切的脏腑是（） ["A.肝","B.心","C.脾","D.肺","E.肾"]
压缩空气中水分的去除设备或器件有（） ["空气过滤器","冷冻干燥机","油雾器","自动排水器","除臭过滤器"]
（）的硬度为4.3。 ["绿松石","青金石","尖晶石","铂金"]
螺杆压缩机正常运转时：排气压力应（）Mpa；喷油温度（）℃；油压与排压压差（）Mpa；精油过滤器前后压差（）Mpa。
