To ______ their new shampoo, they are selling it at half price for a month.

(单选题)Compared with other seed banks, the global seed bank ______. (单选题)What is the author’s purpose in Paragraph 2? (单选题)Seed banks are built to ______. (单选题)Which is the best title for this passage? (单选题)We can know from the passage that Li Yuan ______. (单选题)Your mouth waters when seeing qingtuan because of the _____. (单选题)What can we learn from Charles Darwin? (单选题)When did Darwin leave England for a trip to South America? (单选题)Charles Darwin had so many hobbies except that ______ (单选题)25.（ ）