克拉维酸是( )。
心室收缩时颈静脉有搏动 ,可见于
____ does not study meaning in isolation, but in context

English course objectives at the stage of basic education include five aspects, which are, students ' language skills, language knowledge, emotional attitude, cultural awareness and_______
男孩,3岁。发热伴咳嗽5d,气促半天。查体:T38.5℃,P180次/min,R60次/min,体重10kg。呼吸急促,三凹征(+)。双肺密布细湿啰音。胸骨左缘第3~4肋间闻及粗糙的全收缩期杂音。肝肋下3cm,质软。
该患儿目前最紧急的治疗是( )。
呼吸机辅助通气
纠正心力衰竭
控制感染
心脏介入治疗
心脏外科手术