閱讀理解,閱讀下面短文，把A—D四個句子填入文中空缺處，使短文內(nèi)容完整、正確、然后完成第5小題。

3Dprinters have been around us for some time. There is a lot you can do and image with a 3D printer. ____1___

  A company in China has recently used 3D printers to make ten full-sized housed in just 24 hours. ____2____. These houses are printed wth special “ink ”that has been made from industrial construction waste. The using of cheap materials makes it possible to print each house under ＄5000.The CEO of the company says , “____3___ ”He plans to set up 100 recycling factories across China and changing waste into cost-effective  “ink ”for 3D printers. ____4____However ,at present ,multi-storeys 3D-printed building are not allowed in China. So,it’s important that the 3D printing technology will be widely used to build any time soon. Maybe there be still a long way  to go.

A. They are both environment –friendly and cost-effective.

B. Now add “building a house in a day ”to the list.

C. He also hopes his printers can be used to build tall buildings.

D. And each of the houses covers an area of 200square meters .
 
 


5.According to the passage ,which of the following is TURE?

A. Each of the printed housed costs at least 5000dollars .

B. There’s no limit in China to print tall building with 3Dprinters .

C. The 10full-sized houses are printed out of recycled materials.

D. 3D printers will soon caome into commom use to build houses .

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