A resource histogram has all of the following characteristics EXCEPT:

A．It generally shows that the project has insufficient resources to be completed oil schedul

B．It is a tool of the staffing management pla

C．It illustrates the number of hours that a person, department, or entire project team will needed each week or month over the course of the projec

D．It can include a horizontal line that represents the maximum number of hours available from a particular resourc Bars that extend beyond the maximum available hours identify the need for a resource leveling strateg

如果出售无形资产、固定资产产生的现金，甚至转让股份所得到的现金都不足以还款，其贷款档次为（）。

A.关注类

B.次级类

C.可疑类

D.损失类