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              \(\rm{\rlap{_{92}}{^{235}}U}\)是重要的核工业原料，在自然界的丰度很低。\(\rm{\rlap{_{92}}{^{235}}U}\)的浓缩一直为国际社会所关注。下列有关\(\rm{\rlap{_{92}}{^{235}}U}\)的说法中正确的是\(\rm{(}\)　　\(\rm{)}\)

              A．\(\rm{\rlap{_{92}}{^{235}}U}\)原子核中含有\(\rm{92}\)个中子

              B．\(\rm{\rlap{_{92}}{^{235}}U}\)原子核外有\(\rm{92}\)个电子

              C．\(\rm{\rlap{_{92}}{^{235}}U}\)与\(\rm{\rlap{_{92}}{^{238}}U}\)互为同位素

              D．\(\rm{\rlap{_{92}}{^{235}}U}\)与\(\rm{\rlap{_{92}}{^{238}}U}\)互为同素异形体
              难度：较难
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