YuanLongpingisoneofChina’smostfamousscientists,buthec...

问题详情：

   Yuan Longping is one of China’s most famous scientists, but he c   61    himself a farmer. YuanLongping grows    62    is called super hybrid rice. In 1973, he became the first agricultural pioneer in the world    63    (grow) rice    64     has a high output. This special strain of rice makes    65    possible to produce 20% more of the crop in    66  

same fields.

      67    in 1930,YuanLongping graduated from Southwest Agricultural College in 1953. Since then he has    68    his life to finding ways to grow more rice. Thanks    69    his research, the rice farmers are producing harvests twice    70    large as before.

【回答】

iders     grow        

          ted              

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