语法与词汇 In industrialized countries the need to _____ stricter environmental regulation has made burningcoal more costly.
【正确答案】 D
【答案解析】句意：在工业化国家，遵守更严格的环境法规的需要使燃煤变得更加昂贵。Comply with遵守，服从。ring up响起；打电话。try out试用；选拔。come out with和……一起出来；说出。