Growing levels of pollution represent a

天天题库2019-12-17 14

问题 Growing levels of pollution represent a serious health hazard to the local population.

选项 A:protection B:indicationC:immunity D:danger

答案D

解析本句意思：日益严重的污染对当地人民的健康构成了重大威胁。hazard危险，危害。protection保护，保卫；indication指示，指出，迹象，显示；immunity免疫力，豁免，免除；danger危险，危险物，威胁。

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