It is reported that very little use of these waste materials_______ in the past decades．

A．was taken

B．was made

C．has been made

D．has been taken

下列各项中，应计入计税工资总额的是( )。

A．企业浴室、理发室职工的工资费用

B．合同工和临时工的工资费用

C．退休职工和下岗职工的工资费用

D．幼儿园和托儿所职工的工资费用