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系统测试是将已经集成好的软件系统与其他系统元素结合在一起,进行一系列的( )。
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Archaeological studiessupport the claim that Kublai Khan, the founder of the Yuan Dynasty (1271-1368), invented mutton hotpot.
For a long time, only Beijing's privileged, such as the aristocracy, could get their hands on mutton hotpot. It was very popular among the royal families of the Qing Dynasty (1644-1911). From the imperial food archives, Emperor Qianlong (1711-99) was a true hotpot lover, indulging himself with the bubbling dish more than 200 times in 1789.
The public believes mutton has the therapeutic effect of warming the body, which makes it an ideal food for the colder months. Moreover, sheep are generally fattened up after a summer of voracious eating, making them ideal for meat lovers through the winter.
Many folk customs favor mutton over beef in part because cattle were once considered more important as a means of production.
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