(2007)鉴别酸碱失衡的种类，最有价值的测定组合是

• A.尿液pH和PaCO<img src="http://timg.fentiku.com/24/2016/10/17/IqqeRrVv37.png" title='IqqeRrVv37.png' alt='IqqeRrVv37.png'/>
• B.动脉血pH和PaCO<img src="http://timg.fentiku.com/24/2016/10/17/OPTvGT8iBo.png" title='OPTvGT8iBo.png' alt='OPTvGT8iBo.png'/>
• C.静脉血的pH和动脉血pH
• D.静脉血pH和HCO<img src="http://timg.fentiku.com/24/2016/10/17/kruW7QlooM.png" title='kruW7QlooM.png' alt='kruW7QlooM.png'/>
• E.动脉血和静脉血PaCO<img src="http://timg.fentiku.com/24/2016/10/17/GOrpacKKX3.png" title='GOrpacKKX3.png' alt='GOrpacKKX3.png'/>

正确答案：B