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【单选题】
同位素电池是利用放射性同位素衰变过程释放的热能，通过热电偶转换成电能，能在空间及各种特殊环境条件下提供能源。下面哪种同位素常用于制作同位素电池()。A.
钚-238
B.
铀-238
C.
铯-137
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举一反三
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A.
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B.
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C.
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D.
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