One of the first signs visitors encounter（遇见）at most museums is“Please do not touch the exhibits”. However at the new Hoy tocael Prado exhibition at Madrid’s Museo Nacional Del Prado, the officials don’t just encourage the habit, they insist upon it. That’s because this art display has been specially created to enable visually(视觉的) impaired(受损) patrons（顾客）to experience the joy of the works of some of the world’s most famous artists just like able-bodied people can.
The 3-D masterpieces(杰作)is the idea of Estudios Durero. The creators began by taking high resolution(高清的)images of the original works. They then used a special ink to add different 3-D materials to the paintings. This allows blind visitors to feel features like hair, skin, cloaks, etc. so that they can create a visual 
image of what the art looks like in their minds. Since the blind can see some colors, equal importance was given to the colors in the paintings.
The Museo Nacional Del Prado is the world’s first major museum to create one with versions of their most famous work of arts. As to why it has taken so long for it to come up with this bright idea, Fernando Pérez, the museum’s keeper says it is not because of lack of interest, but a lack of resources. Pérez explains, “There are now new technologies to provide answers that were earlier not possible, such as the paints in 3-D, and apps.” Now that they have it all figured out, people plan to continue offering similar exhibitions in the future.
As one blind visitor said, “For us the sense of sight is the sense of touch. My view is to touch, and usually I can’t see the paintings others see in a museum—someone would have to explain them to me. But in this exhibit, I have the chance to see it with my hands.”
27. Why can the paintings in Hoy tocael Prado be touched?
A. They are created by the famous artists.
B. They are specially designed for the blind.
C. They are all made of unique materials.
D. They are displayed in a special way.
28. The second paragraph is mainly about______.
A. how the 3-D masterpieces were created
B. why the museum displayed its masterpieces
C. what special effects the 3-D masterpieces have
D. who are the creators of these 3-D masterpieces
29. Why did it take the museum so long to come up with this concept?
A. The museum has no interest in it.
B. The painters don’t allow using their works.
C. There is a lack of stuff in the museum.
D. T
echnology set a limit to the museum.
30. The last paragraph implies that______.
A. the blind depend on touch to live
B. the blind are usually ignored by the museum
C. the exhibition has been a huge success
D. paintings should be explained in the museum