TOEFL Reading: ETS-TOEFL阅读机经 - P5P5V6UGH7VF4H31L$

Which of the following most accurately describes the relationship of paragraph 2 to paragraph 1? A. Paragraph 2 accounts for the reason why some scientists doubt the theory presented in paragraph 1. B. Paragraph 2 give information about the way that some scientists strengthened the theory introduced in paragraph 1. C. Paragraph 2 exhibits another theory to the one mentioned in paragraph 1. D. Paragraph 2 provides information that reinforces the theory introduced in paragraph 1.