B: The layout drawing shows a product in its environment.
b：总布置图纸是描述在工作环境中的产品。
The layout drawing shows a product in its environment.
总布置图纸是描述在工作环境中的产品。
The campus layout is reasonable, environment graceful neat.
校园布局合理，环境优雅整洁。
The campus layout is reasonable, environment graceful neat.
校园布局合理，环境优雅整洁。
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