单选题 Which of the following most accurately describes the passage?
【正确答案】 C
【答案解析】综观全文,以及文章开头提到的“but they have escaped widespread investigation until recently”可知这是对一个科学新发现的阐述。A项“对可重复实验的描述”,B项“对假设的批驳”,D项“对早期研究的确认”均不对。