- 搜标题
- 搜题干
- 搜选项
单项选择题
The organs closely related with water metabolism and respiration are（ ）
A．Lung and kidney.
B．Heart and lung.
C．Lung and liver.
D．Lung and spleen.
B．Heart and lung.
C．Lung and liver.
D．Lung and spleen.
