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GWD-10-Q8Sulfurdioxide, a major contributor to acid rain, is an especially seriouspollutant because it diminishes the respiratory system’s ability to dealwith all other pollutants.
- an especially serious pollutant because it diminishes the respiratory system’s ability to deal
an especially serious pollutant because of diminishing the respiratory system’s capability of dealing an especially serious pollutant because it diminishes the capability of the respiratory system in dealing a specially serious pollutant because it diminishes the capability of the respiratory system to deal a specially serious pollutant because of diminishing the respiratory system’s ability to deal 答案是A, 我选的是C, 请问A的 system's 对么? C 为什么不对?
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