GRE Text Completion: JiJing 1373-GRE填空机经1373题 - 1W5LYEHLFR25ZJ17A

As a way of ____________ the negative impacts of over-dependence on a single export product – crude oil – the Nigerian government passed legislation in 1999 intended to revitalize the moribund solid minerals sector. A. assuming B. checking C. disguising D. stemming E. downplaying F. shouldering