It is not yet clear how long it will take until 3-D printers are available to everyone. But one thing is for sure: the possibilities are endless.

　　1. The purpose of the first paragraph is to ________.

　　A. list some major 3-D printing breakthroughs

　　B. describe the characters of 3-D printing

　　C. picture a future life with 3-D printing

　　D. describe the benefits that 3-D printing has brought to our lives

　　2. Compared with traditional manufacturing procedures, 3-D printing ________.

　　A. isn’t practical in daily life

　　B. relies less heavily on the use of 3-D scanners

　　C. can produce complicated products in larger sizes or numbers

　　D. has an advantage in meeting the personal needs

　　3. We can infer from the article that ________.

　　A. there is still a long way to go before everyone can have access to 3-D printing

　　B. 3-D printed organs and limbs are as effective as real ones

　　C. big food companies are major players in the 3-D printing industry

　　D. people can create any object with any material by 3-D printing

　　4. What can be the best title for the text?

　　A. What is 3-D printing?

　　B. A new technology-3-D printing.

　　C. How to use 3-D printing?

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