决定血浆pH的主要缓冲对是( )

A、KHCO[img=~\/QImg\/2013-06-27-14-49-35\/image002.gif]\/H[img=~\/QImg\/2013-06-27-14-49-35\/image003.gif]CO[img=~\/QImg\/2013-06-27-14-49-35\/image004.gif]
B、K[img=~\/QImg\/2013-06-27-14-49-35\/image003.gif]HPO[img=~\/QImg\/2013-06-27-14-49-35\/image005.gif]\/KH[img=~\/QImg\/2013-06-27-14-49-35\/image003.gif]PO[img=~\/QImg\/2013-06-27-14-49-35\/image005.gif]CNaH
C、O[img=~\/QImg\/2013-06-27-14-49-35\/image004.gif]\/H[img=~\/QImg\/2013-06-27-14-49-35\/image003.gif]CO[img=~\/QImg\/2013-06-27-14-49-35\/image004.gif]
D、NaHPO[img=~\/QImg\/2013-06-27-14-49-35\/image005.gif]\/NaH[img=~\/QImg\/2013-06-27-14-49-35\/image003.gif]PO[img=~\/QImg\/2013-06-27-14-49-35\/image005.gif]
E、蛋白质一Na\/蛋白质