A. are working in parallel. B. are working in harmony. C. are working in discord. D. are working in collaboration. 参考答案:D 答案解析:[听力原文] David finds it interesting to see the two different approaches working side by side.
第16题: [单项选择]By "have a hand in the process of transfer" the author refers to those who ______. A. control the process of transfer B. are involved in the process of transfer C. need help in the process of transfer D. make a big fortune in the process of transfer 参考答案:B 答案解析:have a hand表“插手,牵扯入”。