依据《安全生产违法行为行政处罚办法》的规定,有()情形之一的,承办案件的安全生产行政执法人员应当回避。custom collection class of the Product objects named ProductList.	The number of items of the data-bound collection is fixed. However, users can modify the properties of each of the Product objects in下列数值各包含的有效数字的位数正确的是()。