下列哪种电生理指标反映未用肌松药者麻醉出现过浅效果较好()。
A.脑电图
B.额肌电
C.食管下段括约肌收缩性
D.指端容积描记图
E.以上均是
参考答案:B
— Good morning, Sir. You were looking for me just now?
— Yes. I _________ have a talk with you. Will you come to my office now?
A.had better
B.would rather
C.may as well
D.would like to
磁共振静磁场的生物效应包括()
A.温度效应
B.磁流体动力学效应
C.中枢神经系统效应
D.射频能量的特殊吸收率
E.射频场对体温的影响