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  3. Although he did not know much ahout how headaches work, Hippocrates was the first doctor to find a way to treat them.Before 400

Although he did not know much ahout how headaches work, Hippocrates was the first doctor to find a way to treat them.Before 400

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问题 Although he did not know much ahout how headaches work, Hippocrates was the first doctor to find a way to treat them.Before 400 B.C., Hippocrates discovered that the bark from willow trees was useful in treating pain.He made a white powder from the tree’s bark and gave it to his patients.Hippocrates did not know it.But he was actually prescribing a natural chemical in willow bark called salicin.When a person eats salicin, the chemical is changed inside her or his body into salicylic acid.It turns out that salicylic acid is good for stopping pain, including headache, but it is bad for a person’ s stomach.In the 1800s, a chemist in Germany changed the acid’ s form a little to make it easier for people to take.This new form of the chemical was called acetylsalicylic acid, commonly known as aspirin today.
          Hippocrates was the first doctor to change organic material into a powder and give it to his patients.But it was not until the 1800s that this natural drug was altered and became known as ________.
选项
答案aspirin
解析 由“1800s, known as”可定位至该段倒数第一句和倒数第二句In the 1800s, a chemist in Germany changed the acid’ s form a ltte to make it easier for people to take.This new form of the chemical was called acetylsalieylic acid，commonly known as aspirin today.即19世纪，德国的一位化学家稍微改变了酸的形式,使人们更容易服用。这种新的化学物质被称为乙酰水杨酸，现在通常被称为阿司匹林。由此可知,这种酸被称作阿司匹林，故本空填aspirin。
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C类竞赛（非英语专业本科）

大学生英语竞赛（NECCS）

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