There was a man called Guo Han in the Tang Dynasty (618-907).

唐朝有个人叫郭翰。

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Beijing Douzhir dates back to as early as the Liao Dynasty (907-1125).

北京豆汁儿的历史可追溯到辽代(公元907 - 1125年)。

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And if we solve for molecular weight, then we wind up with 907 grams per mole.

如果我们求摩尔质量的话，我们的结果是907克每摩尔。

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The 1907 banking crisis then led finally to the creation of the system that we have now the Federal Reserve System.

907年的银行业危机最终导致,我们现有的系统的建立,联邦储备金系统。

耶鲁公开课 - 金融市场课程节选