题目

Anything made of plastic or metal can be 3D printed nowadays — bicycles, toys, tools... even replacement body parts! But the latest trend in 3D printing may be food. Scientists and chefs are putting their heads together to create printed food.Several 3D printers designed for food are now on the market. Anything that can be made into a soft wet mixture can be squeezed (挤压) from a tube in a 3D printer. Instead of ink, these printers can use fruits, vegetables, proteins, sweets, and more. This makes for lots of combinations that can be healthy, yummy, and even artistic.Most 3D printers don钟面上有12个大格,每一大格有（____）个小格,时针走一大格是1小时,分针走一大格是5分钟,秒针走一大格是（____）秒。