婴儿开始添加含铁丰富辅食的时间是（）。 A.1个月内 B.2～3个_爱下问搜题

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问题单项选择题

婴儿开始添加含铁丰富辅食的时间是（）。

A.1个月内

B.2～3个月内

C.4～6个月内

D.7～9个月内

E.10～12个月内

答案

参考答案：C

连线题

①82-10	②17+12	③8+70	④54-24	⑤16+8	⑥50-4	⑦49-8

29	78	30	72	46	41	24

填空题

用方框中所给单词的适当形式填空。

important, take, possible, cause, bad

1. It's ______ him to finish the work in such a short time.
2. I fed even ______ after I live in this noisy city.
3. Everyone should realize the ______ of learning English.
4. Why not ride a bike instead of ______ a bus?
5. The large population ______ many problems so far.