梗死前心绞痛的哪一点与急性心肌梗死不同()
A.心电图ST段抬高
B.胸痛不能以硝酸甘油缓解
C.剧烈胸痛伴恶心、呕吐和大汗
D.心电图未见病理性Q波
E.血压波动
参考答案:D
--What did your sister say to you last night?
---She asked me _____ my father her secret.[ ]
A. to tell not
B. not to tell
C. don't tell
D. not tell
账龄是指某一往来业务从发生之日起到月末结账之日止的时间期限。( )