阅读理解。

Dear friends, 

     My name is Simon. I live in Canberra, and I want a pen pal (笔友) in China. I think China is a very nice

place. I'm 14 years old and my birthday is in November. I can speak English. I have a brother Paul and a

sister Saral. They have pen pals in England and Canada. I like going to the movies with my friends and doing

sports. My favourite subject in school is P.E. It's fun. 

     Can you write to me soon?

                                                                                                                                  Simon

根据短文内容填空。

1. Name: ________

2. Age (年龄): ________ From:________ (country)

3. Language (语言): ________

4. Favourite subject: ________

判断缺铁性贫血铁剂治疗有效的最快速的指标是（）。

A.血清铁增加

B.网织红细胞数目增加

C.血清铁蛋白恢复正常

D.红细胞平均容积恢复正常

E.红细胞游离原卟啉恢复正常