题目：
AZX与A＋1 ZX＋的两种微粒，下列叙述正确的是 [ ]
A、一定都是由质子、中子、电子组成的
B、化学性质几乎完全相同
C、质子数一定相同，质量数和中子数一定不相同
D、核电荷数和核外电子数一定相等
答案：
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参考答案：课程
AZX与A＋1ZX＋的两种微粒，下列叙述正确的是 [ ] A、一定都是由质子、中
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