• 2022-05-31
    中国大学MOOC: Concrete is a polluting material, so all green building materials can be used to replace it.
  • 内容

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      中国大学MOOC: Concrete, the _____gray material, is arguably the most widely-used construction material worldwide.

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      Cast iron is the most widely used engineering material, and also the most recycled of all materials A: 正确 B: 错误

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      中国大学MOOC:"The Romans were the first to ___________ concrete as a building material.";

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      中国大学MOOC: All words can be used to convey conventional implicatures.

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      中国大学MOOC: The typical feature of a green building is recyclable, reusable.