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A solar cell is an electrical device that converts the energy of light directly into direct current.
A solar cell is an electrical device that converts the energy of light directly into direct current.
A.正确
B.错误
正确答案：正确
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材料概论
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Li-ion batteries use an metallic lithium compound as the electrode material。
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Metal hydrides, with varying degrees of efficiency, can be used as a storage medium for hydrogen, often reversibly.