When did it become accepted wisdom that students should be able to name the 13th president of the United Sates but be utterly overwhelmed by a broken bike chain?

学生们应当说出美国第13任总统的名字，而面对一根断裂的自行车链条时却不知所措，这是什么时候形成的共识？

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When did it become accepted wisdom that students should be able to name the 13th president of the United States but be utterly overwhelmed by a broken bike chain?

学生们应当能说出美国第13任总统的名字，但面对一根断裂的自行车链条时却不知所措。这是什么时候形成的共识？

youdao

Supply chain has broken the boundaries between enterprises, it is a function link of network chain among logistics, information flow and capital flow, and has become "the third profit source".

供应链打破了企业的界限，是一条联结企业之间物流、信息流、资金流的功能网链，供应链管理已经成为企业的“第三利润源”。

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