（2017•潍坊模拟）23April is World Book and Copyright Day（世界读书日）．The Day is celebrated by a growing number of people in the world and has made them discover，make the best use of books．Books are windows onto different cultures and tools for dialogue．
Do you like reading books？Which would you prefer？E-books（电子书） or printed books？
In recent years，more and more people like e-books rather than printed books．But there are still many people who enjoy printed books．That depends on the people's reading habits and where they read them．For example，when parents read to their children and people share books with others，most people will choose printed books．
There is a survey．When some 16-year-old students are asked which they would choose when they want to get a book quickly，when they read while traveling，and when they read in bed，here is their choice．Please read the figure（图表） and try to get some information．
41． students who are surveyed like printed books when they read in bed．
A.19%
B.83%
C.13%
D.43%
42．According to the passage，most people would choose e-books for ．
A．traveling
B．reading to the children
C．sharing with others
D．both B and C
43．From the passage we can learn that ．
A．more and more people are studying how to read books effectively（有效地）
B．it's not a good habit for people to read e-books
C．according to the figure，most of the surveyed students like printed books
D．the survey was made by some students．