题目内容
（请给出正确答案）
What can be inferred from this？
A．Sometimes natural air pollutants can purify air.
B．Natural air pollutants are harmful to people.
C．There are some chemical reactions in the air.
D．Air pollutants move from air to water or soil.
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更多“What can be inferred from this…”相关的问题
A、indicate the duke gave command to murder his wife
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C、reveal the tyranny of the duke who hated happiness and joy
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A、sister.
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A、form error
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