The experts also note that diseases linked to diet and a lack of exercise have spread beyond rich countries.

专家还指出，与饮食和缺乏运动有关的疾病在富裕的国家比较常见。

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There are many major credit derivatives types such as credit default swap, total return swap, credit default options, credit spread options and credit-linked note and so on.

信用衍生工具的主要品种有信用违约互换、总收益互换、信用违约期权、信用利差期权、信用联系票据。

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