【正确答案】 C

【答案解析】woman： As far as I'm concerned, wood is derived from trees and can be used directly as pieces of lumber obtained from the log. man： Yes, but as a raw material in the manufacture of various wood products, the wood always need to undergo processing. woman： What does the processing mean? man： Because the raw materials always have its original shape, and are really too rough to be used. Through processing, the materials become smooth, regular and delicate. woman： Can you give me an example? man: Ok. For example, we choose the wood from the market, and then we need to cut, bake and plane them. After the wood processing, the material can be used in the construction and decoration of the room. women： It seems that all the building materials need to go through the processing before being used. man: Yes. Plywood, glutamine timber, and oriented strand board are some of the wood products used most commonly in construction. And the plywood refers to gluing together any of the thin layers.

【正确答案】 A