语法与词汇 ______of organic foods—a term whose meaning varies greatly—frequently proclaim that such products are safer and more nutritious than others.
【正确答案】 D
【答案解析】本题考查名词的含义。A俘虏;B有瘾的人;C竞争者;D提倡者,支持者。该句的大意为:有机食品——一个没有被统一的术语——的支持者们总是声称这类食品比其他食品更加安全,营养价值也更高。