缓解气胸明显呼吸困难患者首选措施为
A.呼吸兴奋剂B.镇静剂C.胸腔引流D.吸氧E.抗生素
参考答案:C
---- Your sister isn’t a nurse, is she?
----- ________. She teaches English in a middle school.
A. No, she isn’t B. yes, she is C. Yes, she isn’t
所有承包商雇员在()都要接受一次现场HSE的岗位训练。
A、工作过程中
B、工作开始之前
C、工作结束之后