Which of the following best explains what makes diamond a good engineering material? Which comparison is true according to the

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问题 Which of the following best explains what makes diamond a good engineering material?
Which comparison is true according to the passage?

选项 A、Diamond jewels are more expensive than jewels of other materials.
B、Lab-produced diamonds outnumber natural diamonds.
C、Diamonds conduct heat as well as silicon.
D、De Beers started making synthetic diamonds much earlier than General Electric.

答案B

解析

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本试题收录于：公共英语五级笔试题库公共英语（PETS）分类

公共英语五级笔试

公共英语（PETS）

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Which of the following best explains what makes diamond a good engineering material? Which comparison is true according to the

公共英语五级笔试

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