寡克隆区带是指:()
A.EEG波频改变
B.MS患者CSF的免疫球蛋白类型
C.AD的病理特征
D.MS患者的染色体标记
参考答案:B
病态窦房结综合征患者最理想的治疗方法是()
A.静脉注射阿托品
B.静脉滴注异丙肾上腺素
C.同步电复律
D.安装永久心脏起搏器
E.静脉滴注麻黄碱
The experiment shows that proper amounts of exercise, if ______ regularly, can improve our health.
A.being carried out
B.carrying out
C.carried out
D.to carry out