Sternal angle () A: at the junction between the sternal manubrium and xiphoid process B: parallel to 2nd costal cartilage on both sides C: Is the only sign counting vertebra D: parallel to the lower edge of 5th thoracic E: adjacent to pericardium behind

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

The correct position of chest compression is ( ) A: The upper half of the sternum B: The left side of the nipple line C: The right side of the nipple line D: The lower part of the sternum, the upper half of the sternal line E: The lower part of the sternum, the midpoint of the nipple line

电除颤时电极板的使用：电极板（STERNAL）：（）；电极板（APEX）：（）。两个电极板之间相距不小于（）cm。每个电极板上应施加相当于（）kg的压力。 A: 胸骨左缘第2~3肋间、左腋中线与第五肋的交点、9、10 B: 胸骨左缘第2~3肋间、左腋中线与第五肋的交点、10、9 C: 胸骨右缘第2~3肋间、左腋中线与第五肋的交点、10、10 D: 胸骨右缘第2~3肋间、左腋中线与第五肋的交点、9、9