/// <summary>
/// 删除无用的之前的产前任务单，可能发生流产,早产
/// </summary>
/// <param name="earNum">耳号</param>
/// <param name="isInitial">初检true,复检false</param>
/// <returns>删除记录数</returns>
public int RemovePreviousBeforeBornTasks(int earNum)
{
return(taskDAL.DeleteBeforeBornTasks(earNum));
}