If you look for a book as a present for a child. You will be spoiled for choice even in a year when there is no new Harry Patten J.
假如你要找壹本儿童读物，就算是在一年后，《哈利·波特》己经不会再出新书了地时侯，你也会面临眼花缭乱的选择。
Delayed choice experiment raised by J. A. Wheeler was extended from quantum double slit experiment, and it concludes that: our present behavior can affect the past.
惠勒提出的延迟选择实验是量子双缝实验的一个扩展，它给出了一个特殊的结论：我们现在的行为对过去产生了影响。
Conclusions For pregnant women whose renal colic cannot be alleviated by conservative methods, placing double-J-catheter is a safe and effective treatment choice.
结论对于保守治疗不能缓解的输尿管结石并发肾绞痛孕妇，置入输尿管双J管是一种安全有效的治疗方法。
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