根据句意、首字母或汉语提示完成单词。

1. Some children often c____ gum when they are free.  

2. We can go to America by a____.  

3. I often play basketball w____ my friends.  

4. His biggest p____ is that he doesn't know how to dance.  

5. She likes reading____ (连环画).  

6. The housing p____ is too high for many people to afford.  

7. I'm afraid of falling into the s____ pool.  

8. Computers are playing a more and more important role in our d      life.  

9. She is very____(有耐心的)with young children.  

10. He has made great progress in the l____ few months.

患者，40岁，排便后肛门外剧烈疼痛，并出现一触痛性明显的肿块，最可能的诊断是（）

A.直肠息肉脱出

B.内痔脱出嵌顿

C.肛周脓肿

D.血栓性外痔

E.肛裂并前哨痔