一些英国朋友要来参加你们班举行的英语晚会。作为主持人，你需要用英语准备一份40-60个词的欢迎辞。包括以下英文提示的内容（开头已给出）：

1. the number of students (boys 32, girls 28)       2. What do you think of English?

3. How do you learn English in your free time (magazines, TV, radio, etc)?

4. Your English programs (plays, songs, etc).       5. ending（结束语）

Good evening! Ladies and gentlemen,

Welcome to our class and welcome to our English Evening.

First of all, let me say a few words about our class.                                      

不需要进行特殊治疗的是( )

A．营养性巨幼红细胞性贫血
B．营养性缺铁性贫血
C．溶血性贫血
D．再生障碍性贫血
E．生理性贫血