Which of the following best explains what makes diamond a good engineering material? CVD is a process to produce______.

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问题 Which of the following best explains what makes diamond a good engineering material?
CVD is a process to produce______.

选项 A、diamond coatings.
B、carbon vapor.
C、decorative gems.
D、large diamond crystals.

答案A

解析

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公共英语五级笔试

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