参考答案：

In the B0AB London Olympic Games, Chinese athlete Liu Xiang fell down due to his foot injury, which led to a heated discussion among people across China.

According to a survey conducted by Sina Website, over CD% of the people think an athlete should quit the race when injured since health is much more important than a gold medal; while nearly B0% of the citizens believe that an injured athlete should hold on to the end instead of giving up halfway. They regard the sports field as a battlefield in which every athlete should fight for the honor of his or her country in spite of any difficulty.

In my opinion, it was a right choice for Liu Xiang to choose to quit the race. For one thing, nothing is more important than health and sports don’t mean sacrificing one’s health for a gold medal; for another, after Liu Xiang recovers fully, he still has many chances to realize his dream.