"The price of books for our students is just getting higher and higher, and along with the rising cost of tuition（学费）, it's killing these students," said Peter Jason, a college professor. "Remember, students are one of the poorest groups of people in America. Almost half of them have at least one part-time job. In fact, one of my students has three jobs. And she still manages to have high scores and go to school full-time."
Textbook prices are usually high. Adding to that problem, many college teachers change textbooks year after year. They either upgrade to a new edition（版本）or change to a different textbook. This further hurts students because if a teacher no longer uses a textbook, that book has no resale value.
Dr. Jason decided to make life a little easier and a lot cheaper for his students by writing his own book on public speaking. "Many books have an increased price because of CD-ROMs, lots of color photographs and pictures. I talked to my students, and many of them, like me, prefer to keep things simple. So, a few years ago, I wrote my own textbook. I made sure that it was simple. Compared to most of other public speaking books, mine is half the number of pages, and one-third the price. That is $30 instead of $90. When I wrote a second edition last year, students only had to buy the 35 new pages. For only $7, they had almost a new book. "
How much does Peter Jason's second edition book usually cost?（ ）
- A.About 7 dollars
- B.About 30 dollars
- C.About 37 dollars
- D.About 90 dollars
正确答案及解析
正确答案
解析
根据文章最后一句话，第二版书，同学们只需花7dollars就可获得一本新书，故答案为A。
