在我看来,12题的false可以在最后一段的第一句话推断出来,如果还是不确定可以略读一下倒数第二段。
至于第13题,我觉得可以在“Electrical manufacturers seized on its insulating properties, and consumers everywhere relished its dazzling array of shades, delighted that they were now, at last, no longer restricted to the wood tones and drab browns of the pre-plastic era”这句话中找到答案。既然现在已经不受限于单调的淡褐色,所以推断13题为F。