高二英語上學(xué)期greatscientists外研英語-文庫吧資料
2024-11-17 07:49本頁面
【正文】 4. He developed a new kind of fastgrowing rice. 5. The government helped him in his research. 6. The new rice replaced vegetables in 50 thousand square kilometers. 7. The new rice is now grown in other countries, such as Pakistan. interest research contributions schooling What is the key to feeding people? To have more rice to produce it more quickly What is the only way to do this? By crossing different species of rice plant When did Yuan make a breakthrough? 1950 b. in 1966 1970 d. in 1990 C which is not the advantages of Yuan’s discovery? rice production rose by % in the 1990’s. ,000 square kilometres of rice field
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