题目

A serious defeat I suffered when I was only 10 years old helped me win the 1968 Olympic ice skating championship. It also gave me a deadly   16   ---- the other Peggy Fleming. Just before that, I had been roller-skating, playing basketball, and could climb   17   a tree as well as any boy. So Dad   18   me to take skating lessons. And soon I   19  several local figure-skating (花样滑冰) awards. Then came the Pacific Coast Championship in Los Angeles. I, a very confident young girl, proud of the   20   of friends and newspapers, walked into the stadium   21  秦统一六国中的决定性战役是             ；使秦朝走向灭亡的决定性战役是              。