Cardiocentesis<br/>is operated from () A: left<br/>xiphocostal angle B: right<br/>xiphocostal angle C: left<br/>border of sternum D: lateral border of sterm, 4th or 5th<br/>intercostal space E: midclavian line, 2nd intercostal space

支配前锯肌的神经为： A: thoracodorsal nerve B: long thoracic nerve C: subscapular nerve D: dorsal scapular nerve E: intercostal nerves

The<br/>position of chest compression in cardiopulmonary resuscitation<br/>guidelines is () A: apex B: median sternum between nipple C: middle sternum D: fifth intercostal space of left sternal border E: infrasternal angle