单选题
Upton Sinclair, an American writer of the 20th century, showed his ______ genius for recreating social history in his novels.
【正确答案】
D
【答案解析】(uncommon非凡的，杰出的)。句意为：美国二十世纪作家阿普顿·辛克莱在他的小说中显示出再现社会历史的非凡才能。A．original有独创性的；B． particular特殊的；C．unique独一无二的。