Listen to the recording and answer the questions below.
1. Which 3D printed product can already be bought?
A) computers B) glasses C) mobile phones
2. Which THREE materials can be used in 3D printers?
A) paper B) metal C) wood D) glass E) concrete
3. Fill the gaps below with no more than TWO words.
Advantages of 3D printing: As the technology develops, it will allow many products to be ______. Items will be delivered digitally, therefore reducing ______ and permitting more local manufacturing. The process will also lead to a reduction in ______ and a rise in ______.
١٠:٢٥ - 1392/11/30 / شماره : ٩١٥٣ / تعداد نمایش : ٣٤٢٢