7人体血液的pH值总是维持在735~745这一狭小的范围内,其主要原因是( ) -题库考试答案搜索网

7人体血液的pH值总是维持在735~745这一狭小的范围内,其主要原因是( )

单选题

2021-09-06 21:09

A、血液中存在多种缓冲系,且其含量维持在一定的比率范围内
B、人体内有大量的水分(约占体重的70%)
C、排出的CO2气体一部分溶在血液中
D、排出的酸性物质和碱性物质溶在血液中
E、新陈代谢产生的酸碱等量溶在血液中

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正确答案

A

试题解析

标签：青书学堂遵义医科大 20级检验无机化学

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