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  3. An artificial "tongue" which can taste subtle differences between whiskies can help tackle the counterfeit alcohol trade, accord

An artificial "tongue" which can taste subtle differences between whiskies can help tackle the counterfeit alcohol trade, accord

admin2021-06-15  9
问题         An artificial "tongue" which can taste subtle differences between whiskies can help tackle the counterfeit alcohol trade, according to engineers.
        They have built a tiny taster which exploits the properties of gold and aluminium to test differences between the spirits.
        The technology can pick up on the subtler distinctions between the same whisky aged in different barrels.
        It can tell the difference between whiskies aged for 12, 15 and 18 years. Engineers say the tongue "tasted" the differences with greater than 99% accuracy.
        Alasdair Clark, of the University of Glasgow’s school of engineering, said: "We call this an artificial tongue because it acts similarly to a human tongue—like us, it can’t identify the individual chemicals which make coffee taste different to apple juice but it can easily tell the difference between these complex chemical mixtures."
        "We’re not the first researchers to make an artificial tongue, but we’re the first to make a single artificial tongue that uses two different types of nanoscale metal ’taste buds’, which provides more information about the ’taste’ of each sample and allows a faster and more accurate response.
        He said the tongue could be used to "taste" virtually any liquid—not just whisky.
        Dr. Clark added: "In addition to its obvious potential for use in identifying counterfeit alcohols, it could be used in food safety testing, quality control, security—really any area where a portable, reusable method of tasting would be useful."
        Whisky was poured over a chequerboard pattern of the two metals—which act as "taste buds"— and researchers then measured how they absorbed light while submerged.
        Subtle differences which were highlighted on the artificial tongue allowed the team to identify different types of the spirits.
        The team used the tongue to sample a selection of whiskies from Glenfiddich, Glen Marnoch and Laphroaig.
        Research was conducted by engineers and chemists from the universities of Glasgow and Strathclyde.
        Their paper, titled "Whisky tasting using a bimetallic nanoplasmonic tongue", is published in Nanoscale.
What is the "artificial tongue" actually?
选项 A、A machine for food safety testing.
B、Two taste buds.
C、A chequerboard pattern made of gold and aluminum.
D、A large barrel.
答案C
解析 细节题。题干：“人造舌头”实际上是什么?文章第六段中提到“we’ re the first to make a single artificial tongue that uses two different types of nanoscale metal ‘taste buds’(我们是第一个用两种不同类型的纳米金属‘味蕾’制造出单一人造舌头的研究人员)”，由此可知“人造舌头”由金属制成；之后在倒数第五段又出现了相关描述“Whisky was poured over a chequerboard pattern of the two metals(威士忌被倒在这两种金属的棋盘状图案上)”，由此可知“人造舌头”是棋盘状图案；再返回前文第二段“They have built a tiny taster which exploits the properties of gold and aluminium to test differences between the spirits”，由此可知“人造舌头”的制造涉及金和铝两种金属。故C项符合文意。A项“用于食品安全检测的机器”，根据文章内容可知，食品安全检测是这种“人造舌头”的其中一种用处，A项错误。B项“两个味蕾”，根据第六段中的“we’re the first to make a single artificial tongue that uses two different types of nanoscale metal ’taste buds’”可知，“人造舌头”使用的是两种金属，而不是两个味蕾，B项错误。D项“一个大桶”明显与文章描述不符。故本题选C。
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