What is a 3D printer used for? A. Printing books. B. Creating three-dimensional objects. C. Making clothes. D. Drawing pictures. 相关知识点: 试题来源: 解析 B。解析:文章中明确提到 A special machine called a 3D printer uses materials like plastic, metal, or even chocolate to create ...
B。原因:文章中明确提到“A special machine called a 3D printer uses a digital design to create a physical object. The principle of 3D printing is similar to building a tower with blocks. One layer is added on top of another until the object is complete.”所以 3D 打印机是一种特殊的机器,...
相关知识点: 试题来源: 解析 B。解析:文中提到 A special machine called a 3D printer uses materials like plastic, metal, or even chocolate to create three-dimensional objects. 所以 3D 打印机可以使用塑料、金属甚至巧克力等材料。反馈 收藏
___ useful the 3D printer is! A. How B. What C. What a D. How a 相关知识点: 试题来源: 解析 A。本题考查感叹句中 how 的用法。“useful”是形容词,用“How”修饰,A 选项正确。B 选项“What”修饰名词;C 选项“What a”修饰可数名词单数;D 选项“How a”用法错误。反馈 ...
The 3D printer can make many things. What is the material that a 3D printer usually uses? A. Paper B. Wood C. Plastic D. Metal 相关知识点: 试题来源: 解析 C。解析:3D 打印机通常使用塑料作为打印材料,纸一般不是 3D 打印机常用材料,木头和金属相对较少使用。
Four-dimensional printer D. Five-dimensional printer 相关知识点: 试题来源: 解析 B。“3D”是“Three-dimensional”的缩写,意为“三维的”。选项 A“Two-dimensional printer”是二维打印机;选项 C“Four-dimensional printer”和选项 D“Five-dimensional printer”目前并不存在。反馈 收藏 ...
3D printing, also calledadditive manufacturing, is a family of processes that produces objects by adding material in layers that correspond to successive cross-sections of a 3D model. Plastics and metal alloys are the most commonly used materials for 3D printing, but it can work on nearly anythi...
—What a nice model plane!—Thanks. I made it with a 3D printer by ___.A. me B. him C. yourself D. myself 相关知识点: 试题来源: 解析 【答案】D 【解析】【详解】句意:——多么好的飞机模型啊!——谢谢。我自己用3D打印机做的。考查反身代词。me我,宾格;him他,宾格;yourself你自己,...
—Thanks. I made it with a 3D printer by ___. A. me B. him C. yourself D. myself 相关知识点: 试题来源: 解析 [答案]D [解析] [详解]句意:——多么好的飞机模型啊!——谢谢.我自己用3D打印机做的. 考查反身代词.me我,宾格;him他,宾格;yourself你自己,反身代词;myself我自己,反身代词...
One advantage of the 3D printer is its ability to create complex shapes and structures that are difficult or impossible to produce with traditional manufacturing methods. 3D 打印机的优势在于能够制造传统方法难以实现的复杂形状和结构。例如,它可以用于制造内部有复杂通道或结构的零件,这在航空航天、医疗和建...