Twelve-year-old Tang Yin is one of the earliest students to test a digital textbook in China. The boy said he was a little 1 单色的) flat device in April, 2010, because he thought it should be a “ 2 cool” laptop. But Tang still cherishes his new equipment like “protecting my 3 ￥2,000 yuan), he said. ,” said the fifth grader. After all, not every student has the opportunity to 4 the eBook, which is worth $294 (when he received the monochromatic(
