Building materials may be classified into three groups according to the purposes they are used for: structural materials, decoration materials and some special materials.
举一反三
- 请将下面文字译为中文“Structural materials, the material base of civil engineering, are the generalterm of all the materials of construction. Costs of structural materials account for about 50% of the cost of the building. So it is very important to make a reasonable choice for the Structural materials.”
- 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
- n the direct materials budget, the quantity of direct materials to be purchased is computed byadding direct materials required for production to A: desired ending direct materials. B: beginning direct materials. C: desired ending direct materials lessbeginning direct materials. D: beginning direct materials less desiredending direct materials.
- There are three common forms of "collocation or combination" of furniture materials, namely： A: collocation or combination of different natural materials. B: collocation or combination between natural materials and artificial materials。 C: collocation or combination of different artificial materials. D: collocation or combination of personalized materials.
- From the attribute of materials, which two kinds of vernacular materials are classified ( )? A: Vernacular natural material B: Vernacular artificial materials C: Local materials D: Adaptable material E: Ecological materials