单项选择题

A.CA和CDCA浓度增加,但以CDCA为主,CA/CDCA<1
B.CA和CDCA浓度增加,但以CA为主,CA/CDCA>1
C.CA和CDCA浓度增加,但以CA为主,CA/CDCA<1
D.CA和CDCA浓度增加,但以CDCA为主,CA/CDCA>1
E.CA和CDCA浓度减少,但以CDCA为主,CA/CDCA>1