1 . 听下面一段独白,回答以下小题。
1. How is the newly printed house different from previous ones?
A.It was printed in pieces. |
B.It was made from waste materials. |
C.The whole thing was printed at once. |
2. How much does the printed 400-square-foot house cost in California?
A.$ 5,000. | B.$10,000. | C.$15,000. |
3. Where were ten houses printed in just 24 hours?
A.In China. | B.In Russia. | C.In the United States. |
4. How do engineers think the new technology could be used?
A.To put buildings on Mars. |
B.To recycle old materials. |
C.To construct buildings on the moon. |