D.produce pizza in large quantities to earn great profits
解析:选C 细节理解题。根据第二段第一句可知,美国航空航天局提供125 000美元是为了开发为宇航员们提供新鲜比萨的技术设备。故C项正确。
14.The biggest challenge that Anjan Contractor is faced with now is probably that________.
A.he has no money left to go on with his research
B.the pizza doesn't seem appetizing to pizza lovers
C.he has no way to make pizza that can last for thirty years
D.he cannot make the food container last for decades
解析:选D 细节理解题。根据第四段倒数第二句“That's because ...printer last for 30 years.”可知,让打印机中的食物容器能够维持 30 年是目前的一大难题。故D项正确。
15.What's the best title of the passage?
A.NASA is trying its best to help astronauts eat better
B.Astronauts may soon be able to enjoy steaming hot pizza
C.NASA is working on making pizza for common people
D.A 3D pizza printer has been used to make pizza
解析:选B 标题归纳题。通读全文可知,本文主要介绍了一种可以在太空自制比萨的3D打印技术,因此将来宇航员们也许能吃上热腾腾的比萨。故B项最适合做本文标题。
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