生物转化过程最主要的作用是A．使毒物的毒性降低 B．使药物失效_爱下问搜题

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问题单项选择题

生物转化过程最主要的作用是

A．使毒物的毒性降低

B．使药物失效

C．使生物活性物质灭活

D．使非营养物质极性增加，利于从肾及胆管排泄

答案

参考答案：D

阅读理解

阅读理解。

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解答题

已知函数f（x）=x²+alnx
（Ⅰ）当a=-2时，求函数f（x）的单调区间；
（Ⅱ）若g（x）=f（x）+

在[1，+∞）上是单调函数，求实数a的取值范围．