单选题   It's bad policy for developing countries to sacrifice environmental protection to ______ economic growth.
 
【正确答案】 C
【答案解析】 考查动词词义辨析。句意：牺牲环境保护来促进经济增长对于发展中国家来说是一项糟糕的政策。discourage使泄气；weaken削弱；promote促进；create创造。