《BBC之眼》運用數千段影像、外洩的警方文件以及第一手證詞，揭示了使警方得以對手無寸鐵的抗議者使用實彈的指揮鏈條。
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（四）调解民间纠纷，促进家庭和睦、邻里和谐、社区安宁；。夫子对此有专业解读
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Although the puzzle we started with might seem silly, the study of these structures — known as Diophantine approximations — is taken seriously and gets complicated fast. For example, it’s possible to construct so-called Liouville numbers that have an infinite irrationality exponent (endless n-good approximations for any n), but it’s a lot harder to prove that there’s any commonly-encountered number with an irrationality exponent greater than two. In the same vein, algebraic irrationals (e.g., √2) all have an irrationality measure of two, but the proof of this is fiendishly difficult and netted its discoverer the Fields Medal back in 1958.