The book is the best research machine invented. Since mass printing began a few hundred years ago, it has given hundreds of millions of people（1）they could not have found anywhere else.
But many readers don't know（2）a book is organized to help them. They see the different elements of a book. However, the（3）for such organization puzzles them.
The first thing to look at is the title and author.（4）, a title doesn't tell you very much about what is inside, but usually it does. Sometimes a subtitle（5）you more information than the main title.（6）a book has a dust jacket, read the inside flops（书封皮折向里面的部分）. They usually give you a fairly good breakdown of（7）the book is about. Behind the title page in most books is the copyright notice. It is（8）to look at this, especially the last date of copyright. Suppose you are studying space travel, a book with a 1916 copyright will not（9）moon landings.
Check the author's background, if possible. Now and then, you can find it in a beginning part called a preface. Read carefully about the author. Do you think he or she is（10）to write on the book's subject? Does his or her background make the author an expert in this field?
（10）下列正确的是（ ）

A.skilled

B.selected

C.qualified

D.specified