swap(&arr[i], &arr[minIdx]);
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当地负责同志向总书记介绍：千百年来广济桥就“广济百粤之民”，但真正实现这个夙愿、让群众安居乐业的是中国共产党。
Giving stem cells to unborn babies diagnosed with spina bifida while they have in utero surgery could be “a major milestone” in the treatment of birth defects, doctors say.