The sentences are slightly different to those in the book: they have been 'kanjified', mistakes fixed, etc. There's a bit more to the book than just the sentences.
If the book came with audio and it had been ripped to the deck, this would definitely be up for removal. It might be worth removing the frequency data from the next version of the deck -- I could see that being up for debate.
If the book came with audio and it had been ripped to the deck, this would definitely be up for removal. It might be worth removing the frequency data from the next version of the deck -- I could see that being up for debate.