目前，亚洲地区是仅次于欧洲地区的国际旅游发达地区。(　)

A toddler with croup is given a vaponefrin updraft because of increasing respiratory distress. The nurse evaluates the treatment as being effective when see which of the following

A．The child's color is normal.

B．The child's retractions are less severe.

C．The child's heart rate is 100 bpm.

D．The child's pulse oximeter reads 90.