YAG激光器是典型的()系统
A.二能级
B.三能级
C.四能级
D.多能级
参考答案:C
----What did he say?
----He asked ______ for the book.
A.how much did I pay
B.I paid how much
C.did I pay how much
D.how much I paid
女性患者38岁,近5年多次于情绪激动或生气后出现四肢抽搐,伴颈后仰,两眼紧闭,过度换气,每次抽搐发作持续数分钟至数小时不等。患者无头外伤史,抽搐发作时未出现过舌咬伤和大小便失禁。神经系统检查无异常,头颅CT及脑电图正常。
该患者最可能的诊断为()
A.癫痫大发作
B.晕厥
C.癔症
D.癫痫小发作
E.短暂性脑缺血发作