如何理解瑜伽自身的内外净化？
参考答案：
外净化为端正行为习惯，努力美花周围环境；内净化为根绝六种恶习：欲望、愤怒、贪欲、狂乱、迷恋、恶意、嫉妒。
单句改错
1. Believe it or not,the manager is hard to his workers. ________
2. Smoking is bad to your health. ________
3. You should be strict with your studies.________
4. Eating more vegetables is good to your health. You eat too much meat. ________
下列溢漏应急措施表编号正确的是（）。
A．F-B
B．F-K
C．S-A
D．以上都是
