But in 960 a new power, Song (960-1279), reunified most of China Proper.

但是在公元960年，出现了一个新势力，宋(960 - 1279)，重新统一了大部分中国。

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They ruled in the northeastern region of the area known as "China proper", in the Yellow River valley.

他们排除在东北地区的地区被称为“中国适当”，在黄河流域。

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Fossils from north-eastern China show animals that had feathers but clearly could not have flown, as well as ones that look like proper birds.

中国东北发现的化石表明，有羽毛的动物很显然并不会飞行，同样那些看起来和鸟一模一样的动物也不会飞。

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In China proper, Chau is betting on companies that can satisfy the country's growing domestic demand and consumer spending.

FORBES: One China, Many Choices

This absence of proper indices is the main reason why China still lacks a liquid market in derivatives.

ECONOMIST: China's financial markets

The trick, though, is to find the proper angle from which to view the debt of such issuers as China Development Bank, Gazprom, Hyundai Motor, Petroleos de Venezuela, and Telefonos Mexico.

FORBES: Is Emerging Markets Debt Cheap?