题目

Scientists from the United States say they have found fish and other creatures living under icy waters in Antarctica. They made the announcement after completing three months of research at the Ross Ice Shelf, the world's largest floating ice sheet. The researchers hoped to find clues to explain the force of the melting ice and its effect on sea level rise. Reed Scherer and Ross Powell are with Northern Illinois University in DeKalb, Illinois. They just finished up their research on our southernmost continent. Money for the project came from America's National Science Foundation. We c商鞅一人多姓。据《姓纂》载：“秦有卫鞅，受封于商，子孙氏焉。”其中“商”姓来源于 （    ） A．所任官职名                        B．所在地方的地名 C．母亲的族姓                        D．因功得到的封地