多项选择题 What does a pronunciation teacher do? A、Supply information. B、Give models and set standards. C、Provide a wide variety of practice opportunities. D、Support and encourage the learner.
单项选择题 硬质合金车刀高速车削螺纹适用于
单项选择题 李某,女,70岁,因肺源性心脏病入院,卧床,主诉疲乏,失眠,病人痰多,粘稠,不易咳出,SaO2 85%。护士应以生命至上为宗旨,以轻重缓急为原则,首先处理的护理诊断是( )A.睡眠障碍B.清理呼吸道无效C.便秘D.有皮肤完整性受损的危险E.活动无耐力