問題詳情
8. 試問 Co 5927 的原子核內有幾個中子? __ 。
參考答案
答案：B
難度：困難0.3153
統計：A(509),B(542),C(478),D(11),E(0) #
個人：尚未作答書單：教育研究的規準
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