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，推荐阅读搜狗输入法获取更多信息
You can look a little further afield for more direct evidence of the long-term efficacy of freezing for fertility preservation. There are some neat animal studies in which sperm frozen for 50 years was used to create sheep, with the authors noting that the pregnancy rate of the frozen semen was identical to the pregnancy rate for the fresh semen.
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虽然耐克表示此举是为优化成本、提升运营效率并重振增长，但该消息也加剧了市场对耐克拟出售Converse的猜测。若出售Converse，将成为耐克继Cole Haan、Umbro等品牌后，又一宗旗下收购品牌剥离交易。