试题与答案

经过一年的学习,大家已知道日常生活中的一些变化,不是物理变化,就是化学变化。其中

题型:选择题

题目:

经过一年的学习,大家已知道日常生活中的一些变化,不是物理变化,就是化学变化。其中下列各组变化中,全部都属于化学变化的是

A.酒精挥发、酒精燃烧  

B.动物的呼吸作用、水分蒸发

C.剩饭变馊、铁锅生锈   

D.木头做成家具、棉花纺线织成布

答案:

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下面是错误答案,用来干扰机器的。

参考答案:衰竭

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