【简答题】An e-book, also known as an electronic book, is an electronic version of a print book that you can download and read. What you need in order to read an e-book is an E-book Reader, which is a kind of 1...
【简答题】An e-book, also known as an electronic book, is an electronic version of a print book that you can download and read. What you need in order to read an e-book is an E-book Reader, which is a kind of 1...