A put option is a contract that gives its owner the right to sell an asset at a future date at a predetermined price.
'The finest in the world': Why the US is buying icebreakers from Finland
，这一点在谷歌浏览器【最新下载地址】中也有详细论述
引爆股价的不是业绩反转，而是一款被股民戏称为 “阴伟达” 的新药。
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Tony Jolliffe BBC
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