Concrete is a polluting material, so all green building materials can be used to replace it.
A: 正确
B: 错误
A: 正确
B: 错误
举一反三
- 中国大学MOOC: Concrete is a polluting material, so all green building materials can be used to replace it.
- Green building materials refers to materials that are renewable, like straw, mud brick and timber. A: 正确 B: 错误
- Cast iron is the most widely used engineering material, and also the most recycled of all materials
- 中国大学MOOC: Green building materials refers to materials that are renewable, like straw, mud brick and timber.
- Among the following welding processes, can be used for all the materials of almost all thickness ranges. A: SMAW B: GTAW C: FCAW D: GMAW