单选题 The remarkable ______ of life on the Galopagos Islands inspired Charles Darwin to establish his theory of evolution.

【正确答案】 D

【答案解析】解析：variety n.多样性，种种，多种多样；变化，多样化；品种，变种(a variety of各种各样的，多种多样的)。classification n．分级，分类。diversion n．转移，转向：临时支路。density n.密集，稠密；密度。