Questions 18-20 ask about both passages.
19. Compared to the author of Passage A, the author of Passage B provides more information about the:
Your Answer is
Correct Answer is A
Explanation
The stem asks to select the information mentioned in the second passage but not in the first passage.
Item A: Through the last paragraph of the second article, it can be found that the second article mentions the decline in the number of apple species in the past few decades. The first article did not mention these.
Item B: The first article L16-18 explains that Vavilov proves that Tian Shan's apples are the origin of the current apples by pointing out that Tian Shan's apples are the same as the local grocery's apples. The second article does not mention relevant information.
Item C: The number of Tian Shan apple species mentioned in the last paragraph of the first article, and the second article does not mention relevant information, so it is excluded.
Item D: Neither article mentioned techniques.