第22题: [单项选择]________into oceans and rivers is a serious form of pollution. A. Pouring sewage B. Emptying litter C. Throwing garbage D. Dumping sewage 参考答案:D 答案解析:近义辨析。用pour表“倒掉”之意时,应用pour away;empty litter倒空垃圾;throw garbage扔垃圾;dump sewage倾倒污水,排污;这里指“排污到江河海洋中”,因此