The term processing refers to how materials are made from naturally occurring or man-made chemical.
举一反三
- This chemical is made ____ a special formula.from A: from B: according to C: .of D: in
- Sentimentalism turned to the countryside for materials, which made it different from ______.
- No matter how accurate and critical material evaluation teachers may have made, when it comes to the use of materials in the classroom, there will be man things unexpected because classroom seems to be a “black box” and many decisions have to be made “on the spot”.
- A lot of what we ________ is made from raw materials which are not renewable.
- For the same component, it should be made from as more types of materials as possible