最近,美国的科学家研发了一种名为“the Drinkable Book”的书籍(jí),不仅可以阅读,还可以用来过滤水。这种书的纸张用的是特殊的过滤纸,这种过滤纸是采用先进技术研发而成的,用它过滤后的水纯度可达99.9%,达到了饮用水的标准。而它的成本仅需几分钱。每张过滤纸可以重复304 Recently, American scientists have developed a book named “the Drinkable Book,” which can be read and used to filter water. The book’s paper uses a special filter paper, this filter paper is developed using advanced technology, with its filtered water purity of up to 99.9%, reached the drinking water standards. And it costs just a few cents. Each filter can be repeated 304