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.

筏板下满堂布置水下钻孔灌注桩时，桩的最小中心距应为（）。

A.2d 

B.3d 

C.4d 

D.5d