【简答题】What did the first cellphones look like? In one of the speakers’ words, they . 2. What did people realize when the first cellphones were invented? People realized that they ...
【简答题】听对话,选答案。 1.What can robots do? A. Difficult jobs. B. jobs. C. A and B. 2. Robots work and _______ like humans. A. study B. play C. make mistakes 3. In factories, robots can do _______ work. A. ...