题目内容

What is true about DSSC's?

A. The electrons that pass through the external load oxidize the iodide to yield triodide.
B. The electrons that pass through the external load reduce the iodide to yield triodide.
C. The electrons that pass through the external load oxidize the triodide to yield iodide.
D. The electrons that pass through the external load reduce the triodide to yield iodide.

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A. Only A
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A. Only A
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