统一年产值标准应设定基准时点，一般（）年调整一次。
A.1～3
B.3～5
C.5～8
D.8～10
参考答案：B
试述小儿心力衰竭的诊断标准。
Which assessment finding would lead the nurse to suspect dehydration in a preterm neonate（）
A. Bulging fontanels.
B. Excessive weight gain.
C. Urine specific gravity below 1.012.
D. Urine output below 1 mL/hour.
