听下面一段对话,回答1-3题。 |
1. When was Carver born? |
A. In 1846. B. In 1864. C. In 1964. |
2. Which college did Carver graduate from? |
A. Iowa College. B. Gorge College. C. Missouri College. |
3. How many uses did Carver discover for sweet potatoes? |
A. 30. B. 200. C. 230. |