Question

Since ancient times, people have known about its ability to

Answer 1

小题1:B

小题2:D

小题3:C

文章讲述了阿司匹林的发明过程和它的具体作用。

小题1:B 根据第一段可知这种物质可知止痛，选项中只有B是疼痛，故B正确。

小题2:D 推理题。根据第三段.Prostaglandins have several effects on the body. Some cause pain and the expansion, or swelling（ 肿瘤; 膨胀）, of damaged tissue. Others protect the lining of the stomach and small intestine. Prostaglandins also make the heart, kidneys and blood vessels （血管）work well.可知前列腺素有些方面对人有好处，有些方面对人有坏处。

小题3:C 细节题。根据文章最后一句But it can also harm the inside of the stomach and small intestine（肠）.可知C正确。