When people think of factories,they think of clouds of dirty smoke or pipes pouringchemicalchemical (化学的)waste into rivers.
【答案】chemical
【解答】
【点评】
声明:本试题解析著作权属菁优网所有,未经书面同意,不得复制发布。
发布:2024/4/20 14:35:0组卷:0引用:2难度:0.8