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    阅读下面短文，把A—D四个句子填入文中空缺处，使短文内容完整、正确、然后完成最后小题。
    3Dprinters have been around us for some time. There is a lot you can do and image with a 3D printer. ____小题1:____
    A company in China has recently used 3D printers to make ten full-sized housed in just 24 hours. ____小题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 ＄500小题3:The CEO of the company says , “____小题4:____ ”He plans to set up 100 recycling factories across China and changing waste into cost-effective  “ink ”for 3D printers. ____小题5:____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.

    小题6: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 .

    小题1:B
    小题2:D
    小题3:A
    小题4:C
    小题5:C

    试题分析：短文大意：这篇短文主要讲述了3D打印技术的应用，并重点介绍了一家中国公司在24小时内，用3D打印技术，打印出了10座全尺寸的房子的故事。
    小题1:联系后一句描述，一家中国公司最近用3D打印机只用了24小时就打印出了10个全尺寸的房子。可知选B，现在这个清单上加入了“一天建造一座房子”。
    小题2:联系前一句,一家中国公司最近用3D打印机只用了24小时就打印出了10个全尺寸的房子。可知选D，并且每个房子占地面积有200平方米。
    小题3:联系前文，这些房子是用特殊的——由工业废料制成的墨水打印的。可知选A，它们既环保又经济实惠。
    小题4:联系前一句，他计划在全国建立100家废物回收厂……，可知选C，他也希望他的打印机能用来建筑高楼大厦。
    小题5:根据A company in China has recently used 3D printers to make ten full-sized housed in just 24 hours . 描述，可知以及公司用工业废料在24小时内就打印出了10座全尺寸的房子。故选C。
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