心悸最常见原因()。
A.心搏增强
B.心律失常
C.心脏神经官能症
D.精神紧张
E.应用阿托品、氨茶碱等药物
参考答案:B
脑血管造影术后穿刺部位沙袋压迫的时间为()
A.2小时
B.12小时
C.48小时
D.10小时
E.6小时
— _______ there any American teachers in your school?
— _______ only one. [ ]
A. Are ; Yes, there are
B. Are; No, there is.
C. Is; No, there isn't
D. Are; Yes, there is