抵质押合同等相关文档失效属于（）。
A.押品剩余信用风险
B.押品实物管理风险
C.押品集中度风险
D.押品价值波动风险
参考答案：A
Good use that the villagers have been ________ the water resources has brought them a large income.
A．making of
B．putting into
C．taking on
D．providing with
血清总铁结合力(totalironbindingcapacityTIBS)
