单选题 The ______ of our civilization from an agricultural society to today's complex industrial world was accompanied by upheaval and, all too often, war.
A. adjustment B. migration C. change D. route

【正确答案】 C
【答案解析】(change改变，转变)。句意为：我们的文明由农业社会转变到如今复杂的工业社会经历了动乱，还经常经历战争。A．adjustment调整；B．migration迁居；D．route路线。