Traditional Culture Encyclopedia - Traditional virtues - Generally speaking, the three major materials refer to metal materials, inorganic nonmetal materials and organic polymer materials. All the following materials belong to the metal material is _ _ _
Generally speaking, the three major materials refer to metal materials, inorganic nonmetal materials and organic polymer materials. All the following materials belong to the metal material is _ _ _
A glass, ceramics and cement are traditional silicate materials and belong to inorganic nonmetallic materials;
B. FRP is a special material composed of glass fiber and synthetic plastic, belonging to composite materials; Polyethylene belongs to organic polymer materials; Superconducting ceramics belong to inorganic nonmetallic materials;
C. Bronze, carbon steel and hard aluminum belong to alloys and metal materials;
D. Plastics, synthetic fibers and rubber all belong to organic polymer materials;
So, the answer is: c; D.
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