球团厂用原料有（）和皂土。
参考答案：铁精粉
按照《反洗钱法》的要求，反洗钱义务主体范围将扩大到哪些机构？
Mr. Green’s office is _______ the 26th floor. You can take the lift there.
A．at
B．in
C．on
D．for
