问题详情

(教材对话原文)
Michael: They are testing the 3D printer. Don’t you come and see it？
Lucas: What？ Never heard of it.
Michael: It is one of the most latest technological innovations.
Lucas: Really？{A; B; C; D; E}.
Michael: Come on! You should learn to be open-minded.
Lucas: {A; B; C; D; E}
Michael: The 3D printing technology could be used in construction, engineering, biomedicine, and many other fields. It can print anything, a house, a car, even a liver!
Lucas: That can’t be true. I will never believe this.
Michael:{A; B; C; D; E}.All these will be absolutely carried out by 3D printers. There’s a company called Natural Machines has introduced a 3D printer for food producing.
Lucas: I guess that there are a lot of procedures involved in this process. So this printer must be very big.
Michael:{A; B; C; D; E}. It can print all kinds of dessert and starter.
Lucas: Is it expensive？
Michael:{A; B; C; D; E}.
A. It is about $.1,000
B. Maybe its functions are questionable
C. It is really true.
D. What are the main functions of it？
E. In fact, it is as big as an oven