Although he is one of China’s most famous scientists, Yuan Longping r 小题1:  himself as a farmer, for he   小题2: the land to do his research. Indeed, his s小题3: face and arms and his slim, strong body are just like  小题4: of millions of Chinese farmers, for whom he has  小题5:(拼搏) for the past fifty years. Dr Yuan Longping grows 小题6: is called super hybrid rice. In 1974, he became the first agricultural   小题7: (先驱) in the world to grow rice that has a high o小题8:. This special strain of rice makes it  小题9: to produce one-third more of the crop in the same fields. Now more than 60% of the grain produced in China each year is  小题10: this hybrid strain.

________________是体温调节的基本部位。