听下面一段材料, 回答第1至3 题. |
1. What is James Zhang really interested in? |
A. Selling machines. B. Science. C. Dreaming of nice things. |
2. What would the machine he would invent deal with? |
A. Polluted fair. B. Polluted water. C. Traffic accidents. |
3. What does James Zhang say about the machine? |
A. It would be very expensive. B. It would be very cheap. C. It would be neither too expensive nor too cheap. |