Children aren't _____ out during their free time. But more and more parents know it's not good for the

children's health.        [ ]

A. allow go                      

B. allowed to go

C. allowed going                  

D. allowecl co go to

以下BOM说法正确的是（）。

A.BOM里的“标准批量”只能输入1

B.BOM单头的“工单单别”不可为空

C.BOM单身序号是以10进位的方式赋予

D.BOM单身的工艺字段若不需设定领料工艺，可以用‘####’取代，表示所有