Composite materials are mixtures of two or more materials._
举一反三
- A composite is composed of two (or more) individual materials, which come from metals, ceramics, and polymers.
- According to source, composite materials divided into: （） A: conductive composite materials B: natural composite materials C: artificial composite materials D: damping composites
- A composite is composed of two (or more) individual materials, which come from metals, ceramics, and polymers. A: 正确 B: 错误
- Composite materials have been in existence for many centuries. The earliest man-made composite materials were straw and mud combined to form bricks for building construction.。（ ）
- According<br/>to the ratio between composite materials and structural weight, which<br/>of the following used most composite materials? ____. A: F-22 B: A380 C: A400M D: B787