关于Bachmann束阻滞心电图表现的描述，不正确的是（）。

A.P波增宽>0.12s且有切迹

B.P波呈双峰，峰间距≥0.04s

C.常伴有PR段偏移

D.可出现间歇性二尖瓣型P波

E.与左心房肥大心电图表现类似

The cost baseline has all of the following characteristics EXCEPT:

A) It is a time-phased budget that will be used to measure and monitor cost performance on the project.
B) It shows the actual cost expenditures throughout the life of the project.
C) It is developed by summing estimated costs by period.
D) It is usually displayed in the form of an S-curve.