题目内容

The physical copy came out first, but the book is now available in all of the major e-book ______ including Kindle and iPad.

A. devices
B. equipments
C. formats
D. machines

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Your total free reading time per day ______one hour, no matter how many books that you have downloaded.

A. is limited to
B. limited to
C. was limited to
D. is limiting to

Online buyers like to see an image of what they will be getting for their money and e-books are no_____ .

A. use
B. exception
C. good
D. benefit

I think it would be sad to see books totally die out so please, can you help keep books ______by not buying an e-book?

A. living
B. live
C. alive
D. lively

There are many benefits to e-books as compared to ____ textbooks including price and ease of access.

A. natural
B. traditional
C. advanced
D. initial