单选题 Humanists argue that human history is {{U}}marked by{{/U}} a continuous conflict between scientific and technological ingenuity and the demands of the spirit.
【正确答案】 D
【答案解析】[分析] 固定搭配 marked by以……为标志的;A.noted by被……记录下,被……特别提到,留意; B.conformed with遵从,适应,与……一致;C.certified by由……鉴定的; D.characterized by以……为特性的。因此答案为D。