Randomized Controlled Trials (RCTs), or A/B testing, have become the gold standard for optimizing various operational policies on online platforms. However, RCTs on these platforms typically cover a l ...

2025 年是世界上第一列旅客列车投入使用 200 周年。1825 年，世界上第一列旅客列车以每小时 24 公里的速度行驶在英格兰的斯托克顿和达灵顿之间。本期节目将介绍为了庆祝这个里程碑英国所开展的活动，以及火车爱好者汤姆·切什尔最喜欢的英国慢车旅行路线，带你感受铁路旅行的独特魅力。

With a master's degree in computer science, Jiang tapped into the light salad sector by integrating AI technology into the production line. After years of exploration, he has cultivated an AI-featured ...

特征：道歉快速、机械、缺乏诚意。常用泛泛的“对不起”、“我错了”搪塞，不具体说明错在哪里，更没有尝试理解对方的感受。目的只是为了尽快结束冲突，平息对方情绪，而非真正解决问题。

On September 10, the 2025 China International Fair for Trade in Services (CIFTIS) commenced at the Shougang Park in Beijing. Henan Province organized both provincial and local economic trade delegatio ...