一般成人吸痰的负压为() ["23~33kPa","33~40kPa","40~53.3kPa","50~60kPa","60kPa以上"]
引导进站时,在进行解锁操作后,LKJ控制模式限速为(). ["A、45km/h","B、30km/h","C、25km/h","D、20km/h"]
绕线式异步电动机的启动方法有()。 ["转子回路串电阻启动、转子回路串频敏变阻器启动","定子回路串电阻启动、延边三角形降压启动","Y-△降压启动、自耦变压器降压启动","定子回路串电抗器启动"]
监控主机电源的过压保护电压值为()。 ["A、120V","B、130V","C、140V","C、150V"]
关于吸痰,以下错误的是() ["A、痰多危急刚应立即实施吸痰,然后再向患者/家属做适当的解释","B、若有气管插管,应先抽吸气管插管出,再抽吸口鼻处","C、机械通气患者吸痰前后给予高浓度的氧气吸入","D、吸痰时插管至合适的深度。遇阻力后即可开负压吸引","E、痰液粘稠者可雾化后再抽吸"]
营业时间员工能否将通勤门钥匙带出营业室?