In 2004, Professor Baughman invented a super-strong, super-light magic material and he named it "mithril" — after the precious a

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问题 In 2004, Professor Baughman invented a super-strong, super-light magic material and he named it "mithril" — after the precious armor in the popular filmThe Lord of Rings.
Self-cleaning toilet bowls, built on the latest nanotechnology, are widely available in North America.

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答案NG

解析 “Stunning Uses of Nanotechnology”小节部分第一段只提到“self-cleaning toilet bowls”的工作原理,并未提及其在北美的销售使用情况。
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