肾脏在维持体内酸碱平衡中的主要活动是

• A.肾小球对血浆的滤过作用
• B.肾小管和集合管对Na<img src="https://timg.fentiku.com/24/2016/10/17/HYCmS5LxNQ.png" title='HYCmS5LxNQ.png' alt='HYCmS5LxNQ.png'/>、Cl<img src="https://timg.fentiku.com/24/2016/10/17/xhOhuZqsCk.png" title='xhOhuZqsCk.png' alt='xhOhuZqsCk.png'/>和水的重吸收
• C.肾小管和集合管对Na<img src="https://timg.fentiku.com/24/2016/10/17/VsJumOEn6I.png" title='VsJumOEn6I.png' alt='VsJumOEn6I.png'/>的重吸收和对K<img src="https://timg.fentiku.com/24/2016/10/17/VsJumOEn6I.png" title='VsJumOEn6I.png' alt='VsJumOEn6I.png'/>的分泌
• D.肾小管和集合管HCO<img src="https://timg.fentiku.com/24/2016/10/17/W8BY1LvPtv.png" title='W8BY1LvPtv.png' alt='W8BY1LvPtv.png'/>的重吸收和对H<img src="https://timg.fentiku.com/24/2016/10/17/QHJwcaYMvE.png" title='QHJwcaYMvE.png' alt='QHJwcaYMvE.png'/>、NH<img src="https://timg.fentiku.com/24/2016/10/17/Ed2Pg3OsyU.png" title='Ed2Pg3OsyU.png' alt='Ed2Pg3OsyU.png'/>的分泌
• E.肾小管和集合管对肌酐、酚红、速尿、利尿酸等的分泌

正确答案：D