单词拼写。
1. You look a little fatter. You'd better do some _______ (身体) training.
2. Zhang Zheng's parents made many _______ (牺牲) so that he could enter Beijing University.
3. He plays table tennis well despite his d_______.
4. Since the accident, Tom can no longer move his legs and he has no feeling below his w_______.
5. Although Samuel left school more than ten years ago, he still keeps in touch with his f_______ classmates.
6. Xiao Wen already created many programmes and one of them received an a______ at her province's science
fair.
7. Though we have many difficulties in study, we must o______ them at once.
8. When a person is having many more food than he could bear, we consider him g______.
9. He a______ the telescope so that he could see the stars more clearly.
10. Creative thinking is a conscious effort to b______ away from old thought patterns in order to explore new
possibilities.
中点M(注：小于半圆的弧称为劣弧)的切线方程是( )．