井下电工应配备便携式()报警仪,必须严格执行测瓦斯、停电、验电、放电、连地线的安全作业程序。
参考答案:瓦斯
Don't_______the pcople who are in trouble. You should be friendly to them. [ ]
A. look at
B. look after
C. laugh at
D. play with
患者,王某患肝硬化多年,近日因腹胀明显,给予腹腔穿刺放液。昨晚,患者突然出现睡眠障碍,意识模糊,言语不清;查脑电图有特征性异常。诊断患者现属于肝性脑病的
A.前驱期B.昏迷前期C.昏睡期D.浅昏迷期E.深昏迷期