研究人员分析了6300个家庭的购买记录。

Researchers ___analyzed purchases made by 6300 households.

从溪流中取的水样本被分析以检测化学污染物。

Water samples taken from streams were ___analyzed for chemical contaminants.

几乎所有的公司都使用电脑来收集和分析关于其活动或客户的数据。

Almost all the companies use computers in order to collect and to ___analyze data about their activities or their customers.