In a healthy person, as hyperventilation time increases, more â—» is
â—» the blood, which
â—» the stimulus in the breathing reflex, thus â—» the breath-hold time.
In a healthy person, as hyperventilation time increases, more [Select] is
[Select]
the.blood, which
[Select]
the stimulus in the
breathing reflex, thus [Select]
the breath-hold time