【单选题】Function of the Lungs Blood vessels running all through the lungs carry blood to each air sac, or alveolus (肺泡), and then back again to the heart. Only the thin wall of the air sac and the thin wall o...
A.
Nitrogen is absorbed from the air
B.
About one-fifth of the carbon dioxide and about one-half of the oxygen in the air goes into the blood
C.
The moisture in the air is almost completely evaporated
D.
About one-fifth of the oxygen in the air goes into the blood and an equivalent amount of carbon dioxide enters the air from the blood
【简答题】In lungs, each bronchiole terminates in a small group of air sacs, called _______.
【判断题】荷兰人对台湾汉人和少数民族采取同一套统治政策。()
【单选题】《西游记》通过孙悟空的行为还表现了以下思想
【判断题】荷兰人对台湾汉人和少数民族采取同一套统治政策
【单选题】各种方案所需的条件已知且每一方案各种后果发生概率的决策是