阅读下面短文，在空白处填入一个适当的词，或填入括号中所给单词的正确形式。
At first my new ____ were difficult to tolerate. The air seemed thin, as though its combination of gases had little oxygen left. Hit by a ____ of fresh air, my head ached. Just as I tried to make the necessary ____ to this new situation ,Wang ping handed a mask to me and I felt better in ____ time. Soon I was ____ on my feet again and following him to collect a hovering carriage driven by computer. Wang Ping fastened my safety belt and showed me how to use it. Soon I could fly as fast as him. However, I lost ____ of him when we reached what looked like a large market because of too many carriage flying in all directions.
During the Renaissance, new ideas and values gradually ____ those held in the Middle Ages. People began to ____ less on religious themes and adopt a more humanistic attitude to life. … Rich people wanted to ____ their own paintings, so they could ____ their superb palaces and great houses.
，若椭圆上存
在点
，满足以椭圆短轴为直径的圆与线段
相切于线段