问题
单项选择题
Contrary to popular belief, assumption that we are not alone in the universe is as old as philosophy itself.
A．consumption
B．prediction
C．provision
D．speculation
答案
参考答案：D
解析：[分析] 形近识别 assumption假定，设想；而A．consumption消费，消费量；B．prediction预言，预报； C．provision供应，供应品；D．speculation思索，构思，推测。所以答案为D。