第16题: [单项选择]Questions 23 to 25 are based on the conversation you have just heard. A. To preserve it longer. B. To give it a particular taste. C. To make it smoother. D. To increase the nutrition. 参考答案:B 答案解析:[听力原文] 23-25 W: I’ve been reading about new healthy snack food. It’s made from fish. Have you hea