Markets are the system that （)some people’s demands and some other people’s supplies.

The use of network（）,systems that effectively isolate an organization&39;s internal netwo

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The contemporary legal systems of the world are generally based on one of four basic s

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There are spectacular differences between financial markets on the Continent of Europe on

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According to the regulation inspections________ to ensure that the systems are in good co

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There&39;s no question that the Earth is getting hotter. The real questions are: How muc

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One of the characteristics of general import and export goods is that they are subject to the relevant national control system concerning inward and outward goods.()

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It’s reported that the police are ________ the area for the criminal.

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