According to Cynthia Beall the haemoglobin in the arteries of the Ethiopians ______.A．is
公共英语
已帮助 人
According to Cynthia Beall, the haemoglobin in the arteries of the Ethiopians ______.
A．is saturated with more oxygen than lowlanders
B．is saturated with as much oxygen as the Tibetans
C．is more efficient than residents in the Andes and Tibet
D．runs faster than people in any other region of the world