The report says the current recession could worsen obesity rates by increasing food prices.

VOA: special.2009.07.21

That is to say, current prices reflect all publicly known information about each stock, and therefore are unbiased.

也就是说，现在的价格,反映了关于股票的所有公共信息,也就是说它是无偏向性的。

麻省理工公开课 - 计算机科学及编程导论课程节选

That is to say, current prices reflect all publicly known information about each stock, and therefore are unbiased.

也就是说，现在的价格,反映了关于股票的所有公共信息,也就是说它是无偏向性的。

麻省理工公开课 - 计算机科学及编程导论课程节选