题目内容

Which of the following expressions is most appropriate?

A. Carbonaceous materials are the most widely used cathodes because they are non-toxic and provide good stability.
B. Carbonaceous materials are the most widely used cathodes because they are non-toxicity and good stability.
Carbonaceous materials are the most widely used cathodes due to their non-toxicity and high stability.
D. Carbonaceous materials are the most widely used cathodes due to non-toxic and highly stable.

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