添加婴儿辅助食品的科学依据有______。

A．6个月后，单纯母乳已不能满足婴儿生长的需要

B．学习吃食物，为断奶做准备

C．适应婴儿消化系统需要

D．培养良好的饮食习惯

E．适应婴儿心理发育需要

Directions:

Write a composition according to the following picture and requirements.

A. Title: Good Manners

B. Word limit: 160～200 words.

Outline :

(1) Describe the picture.

(2) Similar situations in other aspects of daily life.

(3) Your comments.