How long does it take to refresh WOW's entrance examination results? Why can I see books sometimes, but I can't open the books I'm studying?

I brush a book every three hours on average, and every week when the server is updated, I will refresh all the books, not necessarily the arcane magic series, but the Kirin tor monthly magazine or something. It's normal to look at my face and read several books at once.

When there is a small amount left, just squat.

However, I am miserable. From May to now, I have read the 5th issue of Kirin tor at least 30 times, and I have seen the advantages of 10 magic, but I have never seen divination. This achievement really depends on RP! ! ! ! ! !