语法与词汇 Eating disorders are _____ complex diseases, brought on by a mix of environmental, social andbiological factors.
【正确答案】 B
【答案解析】句意：饮食失调是一种非常复杂的疾病，由环境，社会和生物这多种因素合力引起。exceedingly非常地。consciously自觉地。similarly相似地。preliminarily初步地。