The author states that the reason that infants need to avoid certain foods related to allergies has  to do with the infant's                                                 ...

Câu hỏi :

The author states that the reason that infants need to avoid certain foods related to allergies has  to do with the infant's                                                 .

A lack of teeth  

B poor metabolism

C inability to swallow solid foods     

D underdeveloped intestinal tract

* Đáp án

D

* Hướng dẫn giải

Phương pháp giải:

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