阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。
A
Reading on the go
*FReader
A standard reading app for eBooks and audiobooks, FReader supports a variety of formats.
The program is very pleasant to the eye and is adjustable to various spectrums(光谱). Apart from being a reading app, FReader has an integrated translator for five languages (English, Russian, German, French, and Ukrainian), making the app attractive to people across the world. You can also select a section of the page you are reading and share it via social networks, Bluetooth, SMS and other methods.
Cool features: Four themes, supports five languages, advanced 3D animations, scans the device for all existing formats, Text-to-Speech.
Business model: Free app. Only a standard free plan is available.
*AlReader
Although it can read every type of book, AlReader is specially designed for Sci-Fi lovers. The app doesn't support iOS but you can open many book formats on your Android phone. This app has enhanced graphical(图解的) features and a wide range of customization options that focus on providing the best quality for fictional book reading.
Cool features: Text-To-Speech. extermal dictionaries、advanced adjustment of the visual supports E-Ink devices.
Business model: Free app. ASIReader doesn't sell books，but you can simply purchase digital products elsewhere and upload them to the reading app.
*Nook
Nook is strongly integrated with the online store Banes & Noble. You can buy you eBooks anywhere and they will automatically appear in the Nook library. The app supports most eBook formats.
Cool features: Wishlist，Article View、Parental Mode for children, customization of all the visual features.
Business model: Free app. With the partnership with Banes & Noble, you can find over a million free books on their website or purchase new titles for the price of as low as s0.99.
*Scribd
Scribd has come a long way from the document-reading app it was initially. Today, it is one of the most famous programs with over a million titles in its library. Upon registration, you get a 30-day demoaccount that lets you read all the books you want for free! Apart from books, Scribd provides comic books, audiobooks articles, scientific studies, court cases and uncommon genres that no other app offers. You can even publish your own book on this platform.
Cool features: Book sync across different devices, audiobooks.
Business model: 30-day free trial. The monthly subscription for unlimited access to Scribd's available material is £8.99.
21.Why is FReader attractive to international readers?
A. It doesn't harm your eyes.
B. lt has many customization options.
C. It has a powerful integrated translator.
D. Users can share what they read via social networks.
22. What can you do with AlReader?
A. Buy Sci-Fi books.
B. Enjoy great graphics.
C. Read on an iOS device.
D. Publish your own writing.
23.You can read books from Banes & Noble for free on
A. FRcader. B.AIReadcr. C. Nook. D.Scribd.
