答案在第一段第二句，人们也该了解科学家生活在其中的亚文化群以及他们是什么样的人。
Since it touches almost every facet of our life, educated people need at least some acquaintance with its structure and operation.
第一段第二句提出实验要回答的问题；
Which of the statements best expresses the main idea of this passage ?
例如，在第一段歌词中的第二句「我终于看见了你」，在不到一秒间，我们听到一阵飞驰的声音，从左边至右边，再回到左边然后消失。
For example, in the second line of verse 1, "I finally saw you there, " we hear a fleeting noise fly from left to right to left and disappear in little more than a second.
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