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  3. In which year was aspirin first sold? What does this passage mainly discuss?

In which year was aspirin first sold? What does this passage mainly discuss?

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问题 In which year was aspirin first sold?
What does this passage mainly discuss?
选项 A、The effectiveness and safety of aspirin.
B、The functions of aspirin.
C、The development and the effectiveness and side effects of aspirin.
D、The 20th century wonder drug -- aspirin.
答案C
解析 整篇文章讲了阿斯匹林的发展史及所产生的效果和副作用，故C是最准确、最概括的选项。
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