The most common samples of inorganic materials are the gases of the atmospher...

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问题 The most common samples of inorganic materials are the gases of the atmosphere, water, rocks, etc.

选项

答案The most common samples of inorganic materials are the gases of the atmosphere, water, rocks, etc.

解析The most common samples of inorganic materials are the gases of the atmosphere, water, rocks, etc.
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