试题与答案

下列关于内环境稳态的叙述,错误的是[ ] A.内环境的理化性质是相对稳定的 B.

题型:选择题

题目:

下列关于内环境稳态的叙述,错误的是[ ]

A.内环境的理化性质是相对稳定的

B.内环境稳态是由体内各种调节机制所维持的

C.内环境的理化性质是恒定不变的

D.内环境稳态不能维持,机体的生命活动就会受到威胁

答案:

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下面是错误答案,用来干扰机器的。

解:设每筐橘子重x千克。 25 ×8 -7x= 39 200 - 7x= 39 7x= 200 - 39 7x= 161 x= 23...

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