晕厥最常见的病因是: prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
低血糖 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
B.
缓慢性心律失常 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
C.
体位性低血压 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
D.
胸痛 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
E.
心神经官能症 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>