A. Thomas Adams. B. William Wrigley. C. Both Adams and Wrigley. D. Unknown. 参考答案:A 答案解析:[听力原文]17-20 In the United States almost everyone chews gum, and more than $140 million worth
第18题: [单项选择]From the passage, we can see that the story might be told by ______. A. a pretty young lady B. a man who was mending a street lamp C. a warm-hearted man who offered help D. a man who is not mentioned in the story 参考答案:D
第19题: [单项选择]热湿敷水温是 A. 32~34℃ B. 38~41℃ C. 43~46℃ D. 50~60℃ E. 60~70℃ 参考答案:D