______ into oceans and rivers is a serious form of pollution.A、Pouring sewageB、

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问题 ______ into oceans and rivers is a serious form of pollution.

选项 A、Pouring sewage
B、Emptying litter
C、Throwing garbage
D、Dumping sewage

答案 D

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“排污到扛河海洋中”，因此D为答案。

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