将下列单词按要求分类，并将其填入相应的类别中。

pencil                hand              purple            duck             blue     

squirrel             eraser              nose           sharpener        rabbit    

yellow              mouth               pig             monkey           arm        

head                  ruler               finger

1. 文具类：                                                                                       

2. 身体部位类：                                                                                

3. 颜色类：                                                                                       

4. 动物类：                                                                                        

对于铁的吸收，哪项是错误的（）

A.低铁比高铁易吸收

B.与维生素C同时服用

C.铁吸收在回肠末端

D.主要在十二指肠吸收

E.每日约吸收1mg