A preschool-aged child who is hospitalized with gastroenteritis has been NPO. The physician has written an order to advance the diet as tolerated. Which of the following food is the most appropriate for the first feeding the nurse should offer the child

A．Clear lemon carbonated beverage.

B．Toast.

C．Cooked cereal.

D．Ice cream shake.

儿童期学习困难的主要原因是（ ）

A．感官缺陷

B．营养不良

C．多动症

D．统合障碍