题目

听下面一段较长对话，回答以下小题。【1】Where does the conversation take place?A.In a car shop. B.In a car company. C.In a car race.【2】What kind of car is Schumacher driving?A.Ferrari 248F1. B.Ferrari 284F1. C.Maserati 248F1.【3】What can we learn from the conversation?A.The man is a boss of a big car company.B.The man's company only sells Ferrari sports cars.C.The man has chances to meet famous racing drivers.下列平末端属于同一种限制酶切割而成的是（   ） A.①③      B.①④      C.②③      D.②④