单选题
Historians share one fundamental ______ that we can learn from the mistakes of our past.
【正确答案】
A
【答案解析】[解析] 近义词辨析。assumption,supposition均有“假设,假想”之意。assumption侧重主观推测或主观设想;supposition表示某种试探性的主观看法或建议。句中that引导的名词性从句作空格词的同位语,从后面的内容判定assumption符合题意。故答案为A。