認證方： Verified and Validated by Harpercollins, Inc.
無障礙狀態
本電子書的無障礙輔助性符合WCAG 2.0 AA 級標準
無障礙摘要
This title is a well-marked up and structured book, which is fully accessible. The images of this book are well described and, when necessary, short alt texts and/or extended longer descriptions are provided. This ebook passes Daisy?s Ace WCAG 2.0 Level AA checks.
