阅读理解阅读下面短文, 从每题所给A、B、C、D四个选项中选出最佳答案。 Wu Zeyin's new app can help farmers in Botswana work easily. It's named Farm Assistant(农业助手).
Wu, an 11- year - old student from Hubei, China, moved to Botswana with his family seven years ago. After living in the country for some years, he found that the supermarkets there had only some kinds of fruit and vegetables and they were not newly picked.
It's difficult to grow common crops(农作物) because of the special weather. For a long time, Botswana had to import many fruits and vegetables from neighboring countries, such as South Africa, to meet the needs of its people.
In last July, 2023, Botswana successfully (成功地) grew China's drought- tolerant (耐旱的) rice. This kind of crop doesn't need much water to grow. Later, Zeyin made an app to help the farmers. The app has eight crops in it. Farmers can use the app to know something about the crops, like their watering needs, crop yield (产量) and selling price. And he can also learn how to grow this kind of crop from the start to the end.