What's your attitude towards the use of second-hand book?
When is your first time learned about second-hand book?
In primary school
In junior high school
In junior high school
In College
After graduation
Who promoted you to learn about second-hand book?
Parents
Friends
Teacher
Yourself
Other
How many times do you read second-hand book in a year?
One
Two
Three
Four
Five
Six
More
Where do you get second-hand books?
In the library
In the fair
From friends
Other
How much do you cost on scond-hand books?
What standard do you choose second-hand books?
Cost
Quality
Content
Recommendation
Other
Will you recommend others to buy secod-hand books?