成人高考 2022_04_19 每日一练
What can we learn about Miss Jackson?
A. She is a serious lady.
B. She is a strict teacher.
C. She is a narrow-minded lady.
D. She is a poor but kind teacher
关于肾小管的分泌,下列叙述中错误的是( )
A.NH3是通过主动转运而进入小管液的
B.NH3与小管液中的H+结合,生成NH4+
C.NH4+与小管液中强酸盐(如NaC1中的C1-结合,生成酸性铵盐NH4C1)起到排酸的作用
D.强酸盐中的Na+与H+交换,而后与HCO3-起转运回血,起到保碱的作用
E.NH3的分泌对维持酸碱平衡起重要作用