如果1g水中有m个氢原子，则阿伏加德罗常数的数值为[ ]
A．m/9
B．9m
C．2m
D．m/2
答案：B
A primigravida at 34 weeks' gestation is diagnosed with hydramnios. After delivery of the neonate, a priority for the nurse is to assess the neonate for which problem
A．Kidney disorders.
B．Cardiac defects.
C．Diabetes mellitus.
D．Esophageal atresia.
分拣区域的概念是指什么？
