单选题 47.  This plant was severely punished by the government for ______ pollutant into water.
【正确答案】 C
【答案解析】[考点] 词义辨析
relieve：减轻，缓解；relax：放松；release：释放，放出；recycle：回收利用。根据句意可知，选C。
   这家工厂因为往水里排放污染物而被政府严厉地处罚了。